i realized not to long ago that lots of new members have a hard time tunning becuase there not really a place where you can go to look up terminology and function for various codes. now this is no small feat as lots of code have large differnces but all in all GM code is somewhat generic. so why not create a sticky thats list all the various GM code funtions and how they affect the ecm.

some ideas

VE,PE,AE,async, quasisync, timing, constants,etc etc etc......

these items would be great if we defined some of the more basic items in more detail then to date has been done. just a thought if one of the moderators could perhpas find the time to make a sticky thread with tunning terminology and as a group we put the post together then there would be a wealth of info for people to use at anytime.this way there could be alot more nuts and bolts discusion without constantly answering the newbies and some of the oldies. perhaps organizing the codes into 4-5 stickys

$6e,$58,$42 ( there already a $32 $32b but it needs an overhual, which im working on in a very painstaking detail oriented fashion) $8f etc. just a few stickys. toss alot of the other stuff. if one of the mods want to email me id be glad to contribute what ever i can.

we could even do some maf tunning stuff maybe advanced or whatever as well as a source code thread. it just needs organizing into something intelligable.

just some thoughts i had reading posts.

 

i always wondered about doing a idle sticky

from cold start to hot starts and everything in between :-)
along with off idle stumble and stumble comgin down to idle when stopping.

i fought alot of thisout myself but dont think i have had to go as far as some members have.\

Basically i fed it timing since it liked it and worked out the ve tables and ultimately ended up playing quite a bit with the iac steps vs. coolant temp to settle it down for the most part..

im still bugged at how it acts at times when im coming to a stop and every once in a while the idle seems much more noticeable than others....

im more than willing to share what i know (a little bit i figured at least) and even throw up all my bins whether they are madness or not ive gotten it worked at for the most part...

im just looking to get that oem feel i want my formula to drive out like my gta(nearly 100% stock) and the quirks are bugging me and im not having luck at figuring out exactly what is doing it pr what i should look for or mess with to help remedy it
thanks
jeremy

 

Funstick: Its a great idea! I would love to learn what all stuff means.......

 

http://www.diy-efi.org/gmecm/faq/
This website has it ALL. Just requires a few mouse clicks and if that's too much to ask then tuning is out of the question . The person would be better off with an out of the box carb!

 

no arguing the info is out there. the question is do most poeple starting off know how to put it all together to make sense ????????? thats iffy. it would help if we all pitched in and wrote up some stuff that was universally benificial by mask id. then maybe get a bit more mask id specific. this way everybody would have a way to get info quickly easily etc.

this is just na idea.

 

funstick,

Well the answer from my point of view is no. I do not get it.
I for one completely agree a step by step explination is needed. I have Tunercat and the pocket programmer, but not matter how much I read it just won't "click" for me yet. And, I had my car on the dyno today with an air fuel ratio readout and it shows it starting to lean out bady at about 2750 rpm. I did manage to pull a 204.3 hp with 292.4 max torque from a 305, but I know I could have done lots better with some chip mods. At 4400 rpm I was down to 10 to 1 AFR according to the dyno jet readout.

I have lots of questions, but don't ask them. You guys have answered so many newbie questions, I'm afraid to post my questions. So I just sit back and hope one day I will see the light. Maybe a diferent approach might just do the trick for me and others.

And I know now more than ever that I need to get something done. So I for one would be very greatful for any post that is a step by step "chip tuning for dummy's" post or tech article.

Thanks
Dan

 

http://www.diy-efi.org/gmecm/papers/

 

I appreciate your posting the link, but it goes right back to what I said in my other post. I've read as much as I can and really tried to understand this. But I guess I'm a person to person learner.

There is so much info to sift through, I can't seem to find what I need. And, I'm sure everyone in here will flame me for saying this, and ban me from this forum, but in my case, the $300 I spent on the pocket programmer, tunercat, and prom chips would have been better spent elsewhere. I keep reading buy this stuff and make some real gains. Well all I've been able to accomplish is to reset my idle rpm for $300. And, before everyone starts on me, I've spent countless hours reading all that I can on this subject. But, for me the light just hasn't come on yet. I'm a machinist and a good mechanic. I'm not a computer prorammer type. I guess it boils down to where your talents lye in regards to understanding all this. Honestly if anyone asked me is it worth it to buy this equipment I would tell them no.

So, go ahead and start flamming on me now.

 

Don't give it up too soon. I too went through the same thing when I started. The key is to just keep reading as much as you can. The more you read the more you will begin to understand it.

Another approach is to use the search feature of the diy-efi archives. Search a topic and just read through the posts. After a while it starts to stick and make sense.

One of the things I did was to look at the pieces as they fit to a carb & mechanical distributor. Look at the timing table and fit the different areas to a centrifugal/vacuum distributor. Then change the table and check the results. The RPM axis of the table is fairly obvious. The MAP axis relates to the vacuum can on a mechanical distributor.

If you were to run a centrifugal only distributor then only the RPM axis of the SA timing table relates.

Accel enrichment is no different then a carb's accelerator pump. Changing pump cams is the same as changing the ECM's AE vs TPS% table. Same with pump squirter size.

Looking at scanner logs can also help. There you can get an idea of what to expect. You'll notice that at light throttle cruise the MAP is rather low. Then as you push the pedal down the TPS increase and so does the MAP.

HTH's,

RBob.

 

Do you have some access to a scan tool?
I'm good with computers so I guess it's hard for me to understand why it's so complicated. I just think of it as a bunch of numbers. 2+2 is more than 1+2 so there is more advance or more fuel etc. Air fuel ratios can't be measured with a standard o2 sensor because they aren't accurate unless you're shooting for 14.7, and that is never a case for performance (run richer, like 12:1 as an example). I didn't know people were so afraid to post questions. I always figured that was the point of the board, to kind of have mostly rehashed material for the newbies to review between themselves and then to have other posts for the more advanced guys, still giving newbies exposure to what is possible.
I've said it before, if all you want to do is go fast, go carb. Anybody and their brother can figure out how to tune a carb. I was lucky, I was more comfy with computers and I found it more advantagious to keep EFI. Seriously, just explain what doesn't make sense to you. What gets guys like me anoid is the general questions like "how does EFI work", or "is this cam too big", maybe a little too many of the "VATS diable". Stuff like that is ALL over the web and the forums here. If you're stuck trying to understand something explain specifically what you don't understand. Example: "I don't understand how the ecm controls the fuel?" answer~ The ecm uses the VE tables (if more than one they are added together) from there the ecm checks for special modes of opperation. If you're goint WOT the ecm takes the VE tables values as being 14.7 AFR and then looks up what AFR you want from the WOT AFR tables, it does the same thing with spark. It recalculates and from there directly controls how long the injectors are open (more fuel) and how many degrees of spark. Everything else is just to manipulate the main tables. So again, don't be afraid to post questions. If we send you links to an old thread it isn't because we're in a bad mood, it's just easier than spending 15 minutes rehashing what has already been explained. If that link doesn't help you then aks a more specific question.
Sorry that is hasn't been much fun for you. Maybe if you could find a member that in your area and meet up with them at the track or an event. That's how I like to help people, more person to person. The only real advantage of posting here is to help my long term memory .

 

I understand what you are saying. I'm ok with computers, but not a brain at it. I have an autoxray and the moates software and cable. I did a few scans but without knowing what to look for in all the info that the program collects, it's like chinese to me. I understand 1+1+2. I got that. It's simple to you, but do you know how to set up a Fadal 4020 maching center with a 4th axis to engrave a name on a circular part with ??? radius? Probably not. I do. But I have 12 years of experience cuting metal on a machining and turning centers to be able to do this. I know how to drive that tool aroud the metal to get what I want and hit the required specs. I learned it from the school of hard knocks. And you probably learned what you know by the same method, and your experience probably crosses to the prom burning question we are talking about here. My experience does not.

I also understand you aren't mad when you post a link to an old thread. I do the exact same thing in the drivetrian forum. There I see posts asking "How do I rebuild a T5"? Then there are questions like "Can I upgrade a NWC T5 to WC T5"? The answer is NO, but there are people that say yes. Well that's just You cannot upgrade a NWC T5 to full WC specs. Then, "How do I do this on a T5"? Countless times I've told them to buy the Hanlon T5 video for $20. How much cheaper than $20 can you get????? My employee had his T5 in his S10 go out. We went through it for $350. That's $850 less than a shop wanted to do it. And, with the video I loaned him and very little help, he had only a few questions of me and had his pickup running in two days. The video is that good. It's the old saying about "Give a man a fish and feed him for a day. Teach him to fish and feed him for life" type of deal.

Then there is the "zexel" mis-information that's posted. Like "I've heard that you don't have to do anything but swap the carriers out and use your existing shims. No need to check backlash". Well again that's pure I've written many posts on both subjects and still these questions come up and get incorrect answers posted to the questioned asked. I'm so frustrated with all the wrong info about the zexel swap I've purchased a second zexel from SLP, new bearings and races, and a set of adjustable shims and am going to do a tech article with pics on how to install it properly. I'ver got around $190 in the parts to just write a tech article to help others. I don't begrudge doing this because when I was fighting the TPI on my car, many-many people helped me out. So, I'm trying to try and repay the favor. It's the old saying, "What goes around comes around". Maybe someday what I did for someone will come back to me when I need help in an area that I don't understand or have experience in.

So you see I do hear where you are coming from. So, I don't post stupid repetitive questions in this forum because I do not even know enough to post an intelligent question without being made to feel "small" with some of the answers I've seen given in the past by different people. But when I see a post about a new approach on how to explain this to us "idiots" I put my two cents worth in and say "Yes, I do not get it in it's present form, and I would sincerely appreciate a step#1-put key in ignition, step 2- turn key to start car, etc. article. Isn't that what this post is about? Asking people like me, "Do you underatnd it"?? For instance, I have the horsepower, torque curve, and air/fuel readouts for my engine from yesterday. Ok, say you post the graph of it, point out exactly what areas need to be worked on, explain why they need to be worked on, show how the math is done by example, and show where in the chip to correct the problem or make the change. I know I've grossly over simplified this, but I hope you see my point. It's like I'm going to have probably 10 pics of the zexle install for a visual reference when I do the tech article of the install. I'm hoping to write the article in such a way that if you can read the size of a wrench on it's handle, you can swap a zexel in. For me I don't need this, but some people do. They have never seen a mag base and dial indicator, but still want to do the work themselves. And, I aplaud them for wanting to try something new. There is nothing better than trying something new and it coming out right. It gives you a great sense of accomplishment. True, if they go by the "step by step" tech article the guy that took his own time to buy the parts, take the time to install the parts, take pics along the way, and spend hours writing up a tech article that's easy to follow without a lot of techno speak did 50% of the work that made it possible for the newbie to do this, but the newbie can still say "I did it myself!!!".
So, I'm not mad either. I'm just trying to give you my perspective on this.

Anyway, my area is drivetrains and suspension work. Not programming. I'm sure there are a few that can do it all, but I'm not one of them.

Thanks
Dan

 

lol, I think we are the same people just focusing on different parts of the big picture (our cars).
Get this; I bought the zexel from SLP when it was on sale, got Richmond 3.73's brand new from the classifieds on this site for $100 and then got the $100 new bearings, shims, install kit from Raltech (spelling?). I THEN looked for good instructions for installation. After listening to guys that did it themselves and seeing how so many have busted gears I just decided to take it to a pro. John Lurue (races at E-town, friends of Mufflex and a good mechanic with experience). I paid top dollar but it hasn't failed . He's also the guy that said stick with what you've got in the car (pertaining to TBI). If only I could help you and you help me we might have saved each other a LOT of time and money. Well maybe me more money .
I completely understand where you're coming from. I was dumber than dirt, this forum has pretty much changed everything. I've got more of other peoples experience than my own but in a way it makes me more helpful than somebody that says, "I tried it, didn't work, don't do it." I can't have that biased attitude unless it pertains to TBI.
I actually had a complete website that had step by step WITH screen pictures. It just so happened that was hosted on my ex-roommates servers so after a year it was gone. I need to find a host and I'll re-upload it.

 

I understand what you are saying. It's really funny that with what I posted about the zexels, you just happen to be one doing a zexel install. See, I can't for the life of me understand why after buying all the parts you did, why you didn't go get a $20 dial indicator and mag base and put the gears in yourself??? Guess it's the same reason I can't figure out the prom stuff!!! It's like I've been saying, I finally hit on the right example to make you understand where I'm coming from to make it "click" for you. And that's what is needed for a prom burning 1-2-3 article. And, I'll be happy to volunteer to be the "guniea pig" for this. You can't find someone much worse that me on this, so I would be the perfect subject for you.

If you don't mind the web site you mentioned being a second level domain, I'll be happy to host it on my server for you no charge. Just send me all the files and I'll upload it for you. I'd be happy to do my part in helping others learn.

Hmmm, do you happen to have a T5 you need help with????. If so them I'm your man!!! Got the video I would loan you and everything. I've also got a ring and pinion install video!!!!! Isn't that ironic in our case???

alloy@pcez.com My site is www.alloyspecialties.com

P.S. If the files are really big, try to split them up into smaller file sizes. (Not one real large zip file, maybe 2 or 3 smaller ones) My email service provider rejects really large files

 

I would very much like to see someone make sense of all this like Alloy has said. I know enough to work on anything else but fuel injection. I have also read and read until the point of cofusion. I know everybody says, read until it starts to make sense then read it again. What really needs to happen is to simplify it. I would love to see someone start me in the right direction now that I have bought all the stuff. No I don't mean every little detail, that's what all of the Pro's are supposed to help with. I would like to see a simple start to this complex issue. Let me tell you what would help me and tell me if any of it makes sense please.

1. Is it a few mods your tuning for or
2. is it a new engine and need a starting program

Where do you start for the ECM your using, like a 1227747
Could it be as easy as
1. set your fuel pressure
2. timing
3. IAC
4.set your TPS
5. log data at idle
6. tune idle blm

Not that I am sure if this the correct order but it sure would be nice to know, and if any one of those categories are your personal
nightmare then just ask for help on that item. It's great to have all this great knowledge at hand but it would be wonderful to see it more step by step user friendly. There has got to be a start for all of us that want and need to get into EFI tuning Sorry for such a long reply but I really need the help. Thanks

 

I skimmed alot of the long post so I may have missed something. I was having trouble with a surging idle. One constant I didn't know what it did was 'IAC Target Speed Deadband For Drive' I searched this board and corvetteforum for an answer, but came up with nothing. I then found out what 'deadband' meant and figured that the setting was a range of RPM the motor can vary before the IAC tries to correct it. I changed it from 12.5rpm to 75rpm and my idle smoothed out nicely. A nice FAQ would then be:
IAC Target Speed Deadband For Drive - Amount of RPM the engine can vary before the IAC moves to retain the desired idle speed

Or something of that nature, is that what you were talking about funstick? Because I know something like that for every setting would help out a ton and make tuning in general less of a 'scary' thing.

 

thats what im talking about. alot of the tunning article seem to be directed to engineers or the like. and lot of people dont get it. it be nice to organize it like this


code type $58 $6e $8f $42 $32t $EE etc then have a tunning FAQ for each doe and its quirks

then a general stament FAQ

idle rpm deadband for IAC etc

yes this is what im getting at. it would be good to dicsuss the strategys etc behind all the code its all sort of similar in one form or anythoer.

just my 2cents yet again. but it would be the real thing that would help bring it all together. the other thing that im sure will play into all of this stuff will be tunngin styles and varying thoerys on how to tune. the more i learn the more i realized the less i knew. but then again i have my own opinion on stuff. also the more i learn the simpler it seems to be. wierd huh ?

 

Well funstick and others, I'm willing to listen to you and learn. I'm sure it would be much easier to learn in person, but that's not possible in this case. And that's not really the point to this is it. My understanding is this is a project to put something together that lets the average person learn in a step by step way that teaches us what we need to know to get started down the path to programmig nthe chips for ourselves.

Anyway, I have tunercat, the $32b def. file for the 165 ecm, a pocket programmer, extra chips, an autoxray unit and the craig moates software and cable for my laptop. So I believe all I am lacking is the knowledge to put it all together. I fully realize I need to start with the basics, and am perfectly willi gnto do that. So if you are willing to put some kind of training article together I promise to do everything I can to help you with it. I know there is about 20 hp in the chip for my car, and I want it. And generally when there is something I really want, I usually work my butt off to get it.

So, what can I do to help right now???

Dan

 

right now you can help by creating screen shots of every table in the $32b calibration. not the constants but the 3d,2d dtat tables. im currently putting the finishing touches on the $32b tunning mega article. ive spent 3 months reaseraching it. so itll be pretty good. thatll save me oodle of trouble. ill have it finished soon. i told craig moates that 2 motnsh ago but everytime i find something out i go ad it and rewrtie so its been sort or intresting to say the least. its also currently at about 9 pages. i figure with JPEGS> itll be about 14 and with the new additions i have planned it could work out to be 20-25. i might package it up as a PDF and make it avaiable on any site that will host it.

then ill work on $58 and $8f which ive already started. the $6e is half done. and more will come in time. its reasearch research reseach digest digest more research then type eidt preview etc. itll be quite nicely done.

 

funstick, Is this the kind of table pic you want? This is a shot of from my bin on a 87 305/tpi/5spd. If this is what you want, then I'll get to work on every table tunercat has.

I'd also be happy to upload your article to my web space. Just let me know when you are ready.

 

thats what im talking about but make sure the tables have names. ive gotta type captions etc. ive done most captions with explinations but i need to do more. thank you for pitching in.

oh PS please only do the $32b table for now. itll save you headaches.

 

Ok, you got it.

I'll do screen capture for every table, then I can upload them and give you the names of the files and how to link to them, or just email all them you to. Your choice. I'll start working on it tonight.

If you need more screen captures, I only have the $32b and I think the 42 file that came with tunercat, so you would have to send me the other files that you want pics of. I'm not sure if they are different, but if they are let me know. I'm glad to help.

 

if you could email me a copy that would be great. and if youd like post them to yr website.

 

It takes time to learn it.

There is no simple paragraph that will explain how it all works together, nor perfect language to explain a surge from a chuggle.

Start reading, making small changes, and noting results.

Having the attitude of wanting to learn, being willing to experiment, and good notes will carry you down the road alot further then the a+b=c explainations.

Tuning now is a piece of cake. Takes some time, and some notes, but gads you a million times the info we had 4 years ago.

Life ain't fair, doing this correctly ain't easy, now get on with it.

 

you are correct there is no simple paragraph. but understanding how value A affects value B will make it tons easier for newbies to get started. plus it would be good to have a complete refernce for at least one code type. ill add as many Mask ID's as i can

im gonna start the articale from the perspective you/he/she/him/her/it/they/we/us know squat about fuel and spark and discuss all the thoery and tunnign techniqes. i figure this way everybody will get it.

 

funstik,

have you been able to make any progress on the article?

 

been working on it in bits again. been busy with getting a house working new job moving from maryland to michigan etc. just really busy!! ill get it done as soon as i can. actually im sitting down right now working on it somemore.

 

I couldn't agree more with what everyones saying and I can relate to most of these problems. I'm doing a TPI swap from a carb on a modded engine, and prom tuning is completley different then what I'm used to. I have read and read and I can play with flags and constants easily enough, but I'm lost when it comes to tables. I don't know if its the terminology or just the sheer amount of information I'm attempting to sift through but despite tons of research I still find myself confused. I'm using the $6e ecu and the ARAP bin file. I think that a step by step procedure of tuning out some common problems (I realize this would be difficult) would be the ultimate help for people like me. Example, an engine has an aftermarket cam and heads installed and is running lean as a result, has a poor idle, ect. Maybe have some general pointers on where to start playing with values in the BIN and in what direction to go. I realize there are many variables and its tough to peg down problems like this, but if people could simplyify what they did to compensate for common mods like this it would be a great help. When I become more adept at prom tuning I fully intend on contributing to something like this because being a beginner sucks, but for right now I'm still learning what I can.

 

i started writing a tunning article then i realized its to much info. so i instead decied to do was break it down into flow charts with a breif intro explaing thoery etc. i think this format will help but it also makes me go back and undo everything i did. LOL. im working on it. does anybody know how to do all this Via a wbepage etc ? i was thinking of breaking it into segments? just wondering ?

 

Fuel:
Spark:
Egr:
Cold Start:
Hot starts:
WOT tunning:
PT tunning:
Fuel Mileage:
what ive been doing i creating segement to go with these topic headers. i all ready have alot of garb. but what id like to do is make it indexed. this way if you have general fuel trouble you click fuel read the descriptions and go from there.

what id like help on right now is what exactly do you think need to be covered under each topic. i have header written for the all the tables. it just be nice to start with the FAQ then work from there.

 

funstick,

I guess it depends on how basic you want your article to be. From my point of view, the article needs to start with the basics.
Now I don't mean, "this is a car, this is the engine, ect" If they don't know these basics, then no matter what you do they will never get it, and quite honestly you would be wasting your valuable time on them when they should be enrolled in "auto shop 101" to learn these basics.

Before anyone can make changes they need to know how to set up to scan the car, get the scan, understand the scanning data, then go in and try to change what is needed. Maybe you could do a multi-part article starting with what I have just said. And before you say it, I know if they look the info is already there if they take the time to look, but as you well know they won't do that. But if it's in a step by step format from beginning to end that everyone can refer them to, hopefully it will cut down the "how to I ???" questions.

Then after you walk them (and me) through getting the data and what to look for, give examples of scans and where the usual problem areas are, and exactly what they should be reading so they (me again) can compare our scans with what is the optimal readings we should be getting.

Now that they (me) have the scan data and have compared it with what is optimal, go into each area that needs changing; explain what the problem is, why it is a problem, how to do the calculations to correct the problem, and then show exactly what and how to change it in the bin file.

I realize that you don't just do one scan, make changes and all is well. I'm sure it takes multiple scans and multiple chip burns to get where everything needs to be. And everyone reading the article needs to know that there is a large time commitment to doing this correctly. You don't learn it in one day. And I also believe you should direct your time to one bin editor, tunercat. I believe this is your plan already, but I wanted to add my .02 cents worth. The reason why I say this is because it's a point and click program. I know there are other free programs out there, but then you would end up trying to teach everyone all the different programs, and that gets you away from the main emphasis of you article.

So maybe step #1. What you need to do this. What equipment/software you will need, where to get it, how to hook it up, and the common problems encountered doing this.

step #2 getting a scan, reading and understand the scan data, what program to use for this, and what to look for.

step #3 Examples of common problem areas in the scan data, and how to find them in the scan data. Then how to decide what to do first, and why you should do this first. Show examples of calculations for each area, and then after the calculations are made, how and what to change. And I assume mention that you do one change at a time, or if you do multiple changes explain why and how this should or should not be done.

After the changes are made, then show what to look for in a new scan to show if the changes made a difference.

Please realize I'm just spouting off here, and I know I'm showing my lack of knowledge in this area. But I'm trying to put this into words that I understand, and hopefully others will also understand.

So, hopefully I've made some sense here and out of what I said you might be able to find a tidbit that will help you in this project.

If there is anything else I can do. You know I'm here to help.

 

nope these are the questions and ideas i was hoping to see. would be nice to see more input from othr folks as well.

 

Well I hope that the replies to this post will keep it close to the top so others will see it and add their .02 cents worth also. If you do the article based solely on my input, then you will end up only helping one person, me. And I don't beleive that's what this whole thing is about.

Anyway, let me know if there is anything esle I can do to help.

 

you could put together the outline. im not so good at that. ive got alot of good stuff here but im not sure how to assemble it all into something inteligable. id like to make it into a Webpage !!! having links to assorted sections and then posting it everywhere !

see what you can think of for an outline and ill fill int eh blanksit be nice to get it moving so we can start the tweaking addition process. like i said i got plenty of tech speel done. its the not so tech speil and format im worried abut.

 

Well we have a problem now. I'm not very good at creating things like an outline, or a web page. I have the web space I'm more than willing to donate to host the article. I think a web page would be good, and maybe also make it into a .pdf file that everyone could download and refer to later. Acrobat reader is free, so if we put in in this format there is no excuse for not being able to read it. I have acrobat 5.0 so I can make up the .pdf document, and upload it.

If you can forward me your info, I can read it, and attempt to write it into something I could understand. I'm sure if we do it this way I'll have a lot of questions of you on certain things, but in your explianing them to me, I'll aquire the knowledge and hopefully we can both come up with a document that most people can understand. We can also upload it to my web space, and post here and ask for people to read it and offer suggestions on what we might change, or possbily add to it. There is a wealth of knowledge here, and if even 10% of the people here add to it, it will be the "go to" article for years to come.

 

ok question on the PDF could it be a table of contents with pointers to various segments ?? alot of time youll be fairly familiar with something and youll only be looking for one thing. just thoughts. ill get the outline i think works and well drop it here for everybody to read. then take feedback and ammend as nessacary ! give me a day or 2 to get the outline presentsable !itsa alot of info to organize.

 

funstick and Alloy, If you guys get together and create something for the novice tuner to start with then you will have done what is probably the greatest service to all that have EFI. I would guess that so many people won't invest in the tools because of not having someone or something to follow. It will probably change the chip burning arena much more than even you two could believe. You will open up something that has been a fairly quiet and secretive community. Not that most people here are not helpful, but anyone starting anything this complex really needs to go to school to be successful and you need the books if your going to learn. Just an opinion and please hurry up would you guys.

 

Scott, thanks for you input on this subject. I hope we can come up with something that will help countless people from years to come. But it will be hard work. Funstick is doing the bulk of it, and I'm just helping because I want to learn, and make my car run better. And in doing this, we will help others along the way.

If you want us get it done faster, you can help us do that. Keep reading this post and give us feedback. We need to know if you understand and follow the article. I'm just one person and I have one point of view. We need many points of view on this, and please don't be afraid to say "I don't get this part". If I understand funstick correctly, this is what we want to hear from you and others like you. What's the use of writting the article if no one understands it. And if you have any special talents you can add to this like web page creation, we would glady welcome your help.

So, you have just become a part of creating this article whether you know it or not! Welcome aboard!

 

funstick, I think you can create and index in a .pdf file. I've only done a couple of these documents, so I will have to look into it further. When I get the info from you and see what is needed, then I can start figuring out how to do it. Hopefully more people will come on board and one of them might just have some experience at this type of this. I hope as more people read this post, more and more people will add their talents in creating this article. That would make it much easier for al lof us.

And I'm not sure if I've said this before, but I want to thank you for the time you are spending to put this together to help others. I for one sincerely appreciate it!

 

If I can be of any assistance I surely will. I can guarantee to follow this post very closely and make sure to keep up the best I can. I will probably trial and error myself to death but someone has to give you the testbed of a novice tuner. I have just gathered the tools and should be in a position to move in accordance with the creation of this idea. Thanks again, it's nice to be in the right place at the right time every now and then.

 

i don't have experience with tuning EFI yet (still in the reading stage), but I have made a few websites. email me if you want help with that, i would very much like to contribute to this effort. maybe learn something on the way.

sevi@attbi.com
http://aquasyst.rockin.net/

 

OZZGA, Thanks for joining our team!

When funstik has something put together, we will definately be contacting you. Keep watching this post for updates on our progesss.

The screen shots of the different tuner cat screens is already uploaded to my web space. When the time comes I'll give you the addresses for them so you can write into the web page.


Thanks again!

 

If you guys are interested I would definitely like to help out with the article by making suggestions, including topics that aren't yet included in there, etc. Also, we can put this article up on thirdgen.org's site. No need to create a new site when we can put it up right here.

Tim

 

Tim, Thanks!!! I'm glad you see the merit on this endeaver we are undertaking. In this case I definately believe that more heads are better than one! I'm sure I can speak for everyone else in saying thank you for you help.

I've got some of the necessary pics uploaded to my web space, and we can leave them there and link to them, or put them on TGO's web space to be indlcuded in the web page.

I guess we will get this figured out when the need arises.

Thanks again.

Dan

 

sounds like a plan!

 

This sounds great and I will be watching the thread and can give feedback on anything you would like although i am not sure what else I can do to contribute here. I am new to this area as well. Posssible format
example outline:
I) Definition file (6E)
A) flag,constant or table
1) flags:
a) flag name and on or off effects
2) constants:
a)constant name and function of the value
3) tables:
a) table name and explain what this table is and what changes to this table will affect (make lean rich etc.)
B) Scan Tool Data
1) value explanationand function (lean, spark knock etc) of values
a) usual and acceptable ranges of values
b) vehicle symptoms relating to this value baing out of spec
c) what tables to change to affect this value
Hope maybe this is a good beginning
-John

 

I) Definition file (6E)
A) flag,constant or table
1) flags:
a) flag name and on or off effects
2) constants:
a)constant name and function of the value
3) tables:
a) table name and explain what this table is and what changes to this table will affect (make lean rich etc.)
B) Scan Tool Data
1) value explanationand function (lean, spark knock etc) of values
a) usual and acceptable ranges of values
b) vehicle symptoms relating to this value baing out of spec
c) what tables to change to affect this value


this is the best formatr ive seen yet. with a bit of touch up and some add ins it should work pretty good. s0orry been working 8-8 6 days a week. just to tired to really get going on it. ill splice something together within theis format over the next week post it and se what you guys think.

 

Well don't forget us with the $3b def. file ok? At least I think that's what it is.

I'm building a new boot drive and don't remember what file my 87 uses, but I think it is the $3b. I'll get my comptuer back up and running full speed in a few days. My drive was acting up badly, and I think it was a virus that got by my anti-virus software. So I'm on dial up now and can do much until my high speed connection is back up. But I'm still here, so if I don't answer emails or respond to a post, you know why.

 

Guys, this is great!!! This is exactly what I'm looking for.

I am a member of the 454SS club and all those guys have a wealth of info, but I just can't get what I need as far as chip burning there or anywhere else.........at least something I can understand! I've read, and read, and when I got done, I read some more until I had a killer headache.

My truck has been a best of 13.41 @ 99.92 in the 1/4 with an off the shelf chip. I have all the hard parts and more on the way, and the only thing missing is custom tuning.

What I want to do is wring out the N/A combo and hone my tuning skills before I add the Vortech YS trim that I've had since Christmas. I am entering (as far as I can tell) uncharted waters with my upcoming combo which is lots of boost on a BBC with the stock style TB (bore sizes increased to 2.2 inches) and stock ECM. My truck is hefty at ~4500 lbs, so I have a lot of metal to move.

Thanks again in advance

Bill

 

I got to agree guys, this is a great idea that a lot of us have been begging people to do. Unfortunatly a lot of us don't have the time to sort through all of the messages here and on diy-efi. usually before I start work over the summer I spend about a week attempting to get things figured out and by the time I start feeling comfortable I'm slammed with work again.

Here's another idea that would be neat but I don't know how possible it would be to do:
After showing a person how to calculate the changes for a certain table, is it possible to show a graph of the before and after? Like a winaldl table?

Anyway that I can help, let me know. Law school isn't any fun but when I bring my head above the water I tend to check email and see if my family is still alive...

Like I said, I've got a bunch of bits and pieces of info that I pulled off for $61 if you need it.

Thanks for taking the time to do this stuff guys,
Mike

 

Just thought i would get this back to the top and see if anything was happening wih it.