completely new to all of this and in need of help.Thank you,any help is greatly appreciated. The combo is a sbc 350 flat top Pistons, full 3 inch exhaust with headers, profiler 195cc chad speir econo port heads, tpis mini ram, 48# injectors, comp cams xr276hr and a 58 mm throttle body. Base timing is at 6 and tps sensor is at 5.4. Had the ebl in with a very low psi (28) and now I raised it to 43.5 and the car won't idle. Just trying to get a good tune in. What're some things I need to look for? I'm tuning on the EBL P4 flash tuner and I've got a bin set up that I've been playing around on but I'm at a stand still now I have no idea what to do or what to change at this point.

 

If the bin reads the correct sized fuel inectors, the correct sized engine displacement, and if your Idle SA matches your base timing by hand, it is just a matter of running a few VE Learns to dial it all in. Throw up a bin, will take a look...

 

i don't know how to upload a bin on here. do i have to make a photo bucket account?

 

No, when you reply to this post again, just click on "manage attachments" when responding to this thread underneath the submit reply and preview post buttons, and add the bin file...

 

Which initial tune did you use to start the car with? Dynamic supplies some basic tunes with the purchase to help us get started, its a bit of a base to go from. Im sure there is one there that will get you idling. Have you noticed those files on the disk? If you cant get it started with one of those, I would start to wonder if there is an issue somewhere else, such as base timing.

 

alright should be attatched. i used EBL_P4_3005 bin which is the 5.7l tpi auto base tune.

 

Just looked at the bin in Tuner Pro...

Initial SA - 8* (make sure your balancer is set to 8* with EST disconnected)...
Idle SA - 20* (correlates with SA Main Table in idle RPM range)...
Injectors - 48#
Cubic Inch Displacement - 350

Your all good, just allow the VE to Learn the new fuel pressure setting, and make sure you are reading 43.5 psi with the regulator vacuum line disconnected, not connected...

 

before the ebl i had the psi set at 28 and timing at 12 just trying to get it to run without the ebl, which didnt work. after i got the ebl i lowered timing to 6 and kept the psi the same, it ran but obviously not to full potential. after i raised the psi to 43.5 i am now having idle issues and drivability issues. it wont idle strong or for long and when i do drive it and come to a stop it bogs and dies. i raised the base timing to 8 to see what happens and there is no difference. the shitty part is i took it on a test drive yesterday and it didnt learn anything. i just took it for another drive with timing at 8 and psi at 43.5 and it is just DUMPING fuel and it still wont run on its own. i had to double foot it around my neighborhood and it still wont learn anything.

 

How do you know its dumping fuel? Do you smell and see it coming out the tail pipe?
Was this a new build? If not , was the distributor recently pulled? Give us some insight as to what and when things were done. Did the car run perfectly fine before the mods? Did you have these mods done with the factory ECM, or did you do the mods and ecm change at the same time?


I have a feeling your distributor is not clocked in properly and is far retarded. Try advancing the dist' when you start it up and see what it does. There is no reason the car wouldn't run on that 3005 tune, mine did, and our set ups are close. Mind you, I have heard the minirams are hard to
tune at idle. I would try looking at the distributor first, then the idle areas of the Ve tables.

 

Brendan, your bin is set to 8* BTDC as your spark reference, so your base timing MUST be the same by turning the distributor with the EST bypass disconnected by hand. Not 6*, not 12*, but 8*. Your Idle State is at 20* which is fine. Conservative for that camshaft, along with the rest of the SA Main Table, but still, its fine. What you need to understand, is that at 28-psi of fuel pressure, your 48# injectors are only flowing as if they are 38# injectors. By increasing the fuel pressure back to 43.5 they are back to a 48# fuel flow. That much fueling requires a lot of VE adjustment, not a simple turn of the distributor. The EBL needs to Learn the new VE, and if your saying that it isn't, then you need to find out why. In the WUD, the VE has a target area to Learn in based on temperature. You need to be in this targeted temperature for any VE Learning to take place, for example, if the VE is set to start Learning at 170 degrees, but your only at 150 degrees, don't expect a Learn. Or, if your VE Learn is set to stop Learning at 200 degrees, but your now at 201 degrees, don't expect a Learn. You need to stay in that targeted area in the WUD, so set it accordingly.

 

im sorry guys but i really dont understand what im looking at on the ve table on the wud. and the only settings for VE i see on tunerpro are:
ve- low speed
ve- high speed
ve- extended speed
it shows rpm/map on the table and then a bunch of numbers and i simply dont understand it. the wud has the same table but all the numbers stay at 0.

 

Brendan, do you know how to initiate a VE Learn? You have to tell the WUD you want to start a VE Learn, you need to tell the WUD which bin to base it off of, and you need to name the new one ahead of time. Once done, the WUD will then start a VE Learn process, and if you are within the correct temperature settings, it will change the VE accordingly. Only then will you see a change on the VE screen of the WUD. The VE tables in Tuner Pro mean absolutely nothing, they are only there if you desire to manually change the VE, they have nothing to do with the automatic VE Learn feature. I would highly recommend going to the Dynamic EFI folder that you downloaded onto your computer and read up on how to initiate a VE Learn in the What'sUp.html document that was provided...

 

i have initiated the ve learn on the correct bin and set the temperature ranges but it still wont learn anything. i even tried to take it on a drive and nothing. it goes into closed loop but no blm ln light comes on. could it be the map sensor? also im looking at the blm settings and curious if those could be changed to affect it. again i apologize for the lack of knowledge. thanks

 

If you already initiated a VE Learn, and it is within the temperature ranges, toggle over to the VE screen in the WUD and click on the third item down in the Display box (corrections) and see if there are any numbers prevalent. If not, create a datalog (.dat file), save it to your computer, and attach it to this thread, will take a look at it to see what is wrong...

 

no numbers popped up on the corrections graph so heres a quick log.

 

Brendan, you have an SES light prevalent with the engine started, but no malfunction codes, could be from the increased fueling, or a wiring issue. The VE Learn will not function with an SES light on. Let's go back to the beginning for a moment, did the engine run "okay" with 28-psi of fuel pressure, but then only acted up when you bumped it up to 43.5-psi? If that is the case, bring it back down to 30-psi of fuel pressure, see if the SES light shuts off, then do a VE Learn with 30-psi of fuel pressure. Once BLM's are steady at 128, then raise the fuel pressure again to 35-psi, and do the same thing (in increments) until you smooth it out all the way back up to 38-psi of fuel pressure and no more than that (with the vacuum line on the regulator connected). However, if the SES light was always on since you started, carefully inspect your wiring (grounds, etc)...

 

so instead of just jumping from 28 to 43.5 psi i should slowly raise it? i have an obd1 code reader and its throwing codes for timing (because i bumped it from 6 to 8), iat sensor (i didnt have it plugged in at first because i didnt know where to put it but now i do) which i plugged into one of the vacuum ports on the intake (someone said it can work), and map sensor. codes 23, 33, and 42.

 

The EBL WUD is displaying no malfunction codes. The Initial SA in the bin (3005) is 8*, so the balancer must be at 8* by hand with the EST bypass disconnected otherwise your timing will be skewed. The EST bypass was reconnected afterward when you set the balancer by hand, correct? The difference between the two fuel pressure settings is enormous, too much for any O2 correction to handle on the fly like that. Your 48# injectors were flowing like 38# injectors with only 28-psi of fuel pressure, and are now back to 48# injectors at 43.5-psi, which is an enormous difference. Also, the 43.5-psi fuel pressure setting is with the regulator disconnected, you should only be seeing 38-psi of fuel pressure with the regulator connected, not 43.5. Yes, you need to tune the fueling in increments with the VE Learn function when making a change that drastic in fueling. I am running 60# injectors at 43.5-psi of fuel pressure, if I just nonchalantly raised fuel pressure up to 55-psi, I would see the same result...

Was the SES light on at 28-psi of fuel pressure, and was the idle good?

 

they are both set at 8. and yes i did it correctly. and no when it was at 28 psi and the timing was at 6 there were no ses codes. ill bump it down to 30 here in a minute and see what happens. it actually ran and idled when the fuel pressure was lower.

 

The MAP sensor reading is not valid, it is sitting at 4.5 volts the whole time. Need to fix that before continuing. Use the WUD diagnostic display for checking sensor values.

RBob.

 

RBob is right, on the Diagnostic screen, it shows the MAP correctly reading 4.5 with the key-on and engine off, but once the engine is started, it doesn't budge. It stays at 4.5, as if you are at wide open throttle. The WUD screen does show a different, more correct MAP reading during the datalog though. Strange that there are no malfunction codes. Anyways, if this is the culprit, check for 5 volts on the reference wire to the MAP sensor as well as reference voltage from the ECM, there might be an open or short somewhere if there is an inconsistency between the two. Do the same with the MAP sensor ground circuit, check for any opens or shorts. If all is good, check for a restriction in the MAP sensor vacuum line. If it turns out to be the MAP sensor itself, don't waste your money, I have a 1 Bar MAP that you can have...

 

> The WUD screen does show a different, more correct MAP reading
> during the datalog though.

The main WUD screen is using the default MAP value that the ECM is creating. This is why it varies with RPM & TPS (N-Alpha mode).

> Strange that there are no malfunction codes.

There is, note the 2nd column of the MAP HI 33 error. As soon as the engine starts it lights up, which is the SES light control. The 3rd column is stored malfunction codes, these are the ones that will blink out.

IAT LO 23 is set as the engine was run with the IAT unplugged.

EST 42 is set as the EST/BYPASS was open to set the base timing.

RBob.

 

the iat sensor is connected and reading now. before it wasnt connected and obviously wasnt reading because i wasnt sure where to put it but now i have it plugged in and i replaced one of the vacuum nipples on the side of the intake with it. someone said this will work please correct me if im wrong by doing so. the male connector for the map is broken and split halfway across but the connections inside seem to be made. it was learning before and i just put a brand new and bigger vacuum hose on it. the hose on it before was stupid small. i just unhooked my battery to see if itll reset the code(s).

alright so the iat and est codes are gone. the map code doesnt come on for about 5 seconds after i start my car. car sounds and runs fine for those 5 seconds but once that code comes on it kills itself instantly.

 

Bob, something must be up with my PC. Seriously, I had that malfunction box up and out and nothing was lighting up throughout his datalog. I am positive I was using the P4 WUD and not the SFI-6 WUD, not even sure if that would have made that particular difference anyway. I again played it back just two minutes ago and now they are there. That is very strange...

Brendan, the MAP wiring is your issue, you have to test them...

 

Hey guys I got it working. It was the map connector. Just wanted to say thanks a lot and I really appreciate the help.