I havnt seen any, and i am going to be getting my 350 w/ computer controlled carb on the road this summer. I can do without it, but I though if they made the scanning software it would be a help in tuing the carb at least. I wish that they made software to program the chips for these so I could setup my timing and all but oh well, at least I can adjust it a little at the carb and distributer.

Thanks

Ben

 

Does anyone know?

 

I've asked that same question a couple of time and only got one responce, i quess theres not enough information available from the computer to make the software worthwhile.

 

There is one piece of software that will help tune the electric Q jet, it is called diacom, i forget the manufacturer but you can search on it. It is 300 dollars and requires a laptop. basically a full diagnostic setup that records sensor outputs logs and graphs them. I am looking in to getting it because i am building a Computer controlled q jet 383/roller cam/ afr. i have a friend that is running a 390 on a q jet with the biggest compucam available and he says that he has his car to the poiunt where it passes emmissions better now than stock

 

That seems to be a pretty popular program, but I did not realize that it would work on the computer controlled carb cars. Could you get some more info from him on whether everything works correctly and where he got/how he made his interface cable? Thats quite a bit of money but if it works good I might consider it.

Ben

 

I couldn't find how to make the cable, he bought his. He is more of an aquaintence than friend. He says his runs great, should have gone with a bigger cam. The bulk of the tuning you can be done with a dwell meter on the MC solonoid and a volt meter on the O2 sensor. thge o2 voltage will tell if you are rich or lean, the dwell will tellyou if the comp is trying to go rich or lean. I don't know all the specifics yet i'm still building mine but i'll be happy to updateyou when i get started. I would like to buy the software but i'm not going to until i have to.

 

Do you know where he bought it?

 

Is this person on this board somewhere? If so who is it? If not, do they have email? If they do could you see if they care if you give it to me so I can ask some questions.

Ben

 

If your looking for me my email is Laiky@aol.com, or Epoulos@bwdgroup.com if you send to both your sure to get me.
The Cable only comes from with diacom when you purchase it, sort of there copyright method. You could i suppose manage to make one but its not going to help keep these niche companies in business and were the ones that suffer.

 

Diacom works just fine, and is what I've used to make sure my car is working right and/or tune the car since I swapped the V8 in back in 1999.

 

Do you have a computer controlled carb or what kind of injection. I was told that there was a year when the ccc cars changed baud rates and I was wondering when that was and what speeds the different years were.

Ben

 

If they changed baud rates, I never heard about it. The refresh rate on my CCC carb system blows lab rats. The ZZ4 conversion kit comes with an 87 service replacement ECM, so my guess is if there were any refinements to the ECM, I've got them.

(forgot the sig)

 

Im not sure on that one, but that is what I heard from someone. If someone could verify whether they are different or the same let me know. By the way was the whole ecm or just the memcal replaced? I would be interested to know if the actual ecm was different. By the way, how does your car run.

Ben

 

The kit contained both an ECM and a PROM. My old V6 ECM is lying around who knows where.

I could probably get you a part number off the ECM the next time I'm digging around in there.

 

Diacom is made by Rinda Technologies. A friend of mine has it (Kevin91Z) and we used it on my "stock" 1984 carb Z28. It displayed alot of info on my car. It retails for about (IIRC) ~$300. It only work on computer controlled vehicles upto OBD-I vehicles, will not work on OBD-II.

 

I would like a part number off of the new ecm if possible.

Thanks

Ben

 

Since the computer in my car is so slow, will I be able to use a scan sofware to help me tune? Does diacom give blms and (I think they are called int's) for carbed cars?

 

Nope, no BLMs. Keep in mine these ECMs are EXTREMELY stupid (that's STOOOOOOOOPAD, as in Beginner's Class Today).

Your tuning information is very limited, but the diagnostic capability is really useful.

For useful tuning information, it gives you MPH, RPM, O2 sensor, knock count, TPS, MAP/Vac, MC solenoid duty cycle (highly useful) and a WOT indication. Automatics show TCC lockup and a high gear switch.

The CCC system is so simple it doesn't know BLM. The closest thing you've got is the Mixture Control Duty cycle. IIRC, high percentages (above 50%) indicate fuel being added while low percentages (below 50%) indicate fuel being removed.

For part throttle operation, all the ECM knows is 14.7:1. It doesn't care about anything else. All it really does is watch the O2 sensor and add fuel if it indicates a lean mixture and subtract fuel if it indicates a rich mixture. It messes with the timing too, but Diacom show you NO timing information on these ECMs (I actually don't think the ECMs themselves can transmit that info).

For WOT, the MC solenoid goes full rich and the carb effectively goes into open loop, since the secondaries are completely mechanical. The timing reverts to a fixed curve burned into the PROM as well. The only two things to help you tune at WOT is the O2 sensor and the knock count. Knock will tell if you've got too much timing, and O2 should tell you where you sit fuel wise. But that's really all there is, you've gotta kind of "know" these cars to tune them successfully.

As far as the part number off the ECM, I dropped the car off this morning at the exhaust shop and forgot to get it for you. I should have it back in a couple days and hopefully I'll remember to look then.

 

I think it would be great to have that, but it is a lot of money for the limited functionality of my computer. I would like to use winaldl and may do so, but I wish my computer was fully supported. What really gets me is the knock count not working properly with it. I have noticed that they have quite a few ecms supported. Does anyone know what it would take for them to make it support mine? Would it require a lot of work on thier part or do you think it would be pretty easy for them to make it fully functioinal? This is where I seem to be stuck. It is either $300 or an only partially compatable program. One thing that still makes me consider getting diacom is that I will be running a ccc on a 350 and want to be able to make sure everything is working properly, and tuned good. I think I will be able to tune it with that at least as well as "I" could with the more simpe gauges. I really would like the abiliy to see what this Mixture control duty cycle is and be able to record what it does under different throttle positions. I was also wondering how come more companies dont make stuff to connect directly to the ecm like they do for the turbo buicks, because that would be great.

Ben

 

Speaking of WinALDL, I'm going to see if I can get someone to make me up a cable for it. I'm just too damn lazy to dig around for the parts, solder everything together, etc, when someone else can do it. OnceI get that, I'll give you an idea as to whether or not it works well with the ZZ4 ECM. I wouldn't be surprised if the ZZ4 "PROM" and ECM and the cable ended up being cheaper than DIACOM, and AFAIK the ECM is a plug in replacement (no wiring harness modifications). I'm running mine on a 84 V6 harness modified to 84 L69 specs, and it seems to be fine.

 

I asked the same question on the diy prom board and there was some interesting info brought up there. https://www.thirdgen.org/techbb2/sho...hreadid=100245

 

Yeah I have to admit that I read that and got little out of it.

I went in asking the question of whether or not my car would work with that and came out with an answer of "maybe".

We'll have to see.

 

Oh, and do you know where the list for the zz4 conversion kit is. I saw it online one time and it had all of the part number and everything.

Ben

 

you can find them in the GM Performance Parts catalog. There is acomplete parts list. If you need something specific put it on the list and i'll look it up. FYI I understand that the zz4 Kits are no longer being made, if you want one you'll have to find a dealer that has one. I'd try scoggin dickey ( SDPC2000.com )

 

Found it. Prices are from www.gmpartsdirect.com

The GM ECM part # is 1228079 ($83.67)

The PROM for the knock sensor equipped cars is 24502456. For the non knock sensor cars is 24502457. ($65 for either)

Parts list for HO Camaro conversion

FYI, that ECM P/N is not listed at all on the winALDL page that I see.

 

I am not looking for a kit, but possibly the ecm and at least the chip. I have already got most everything else I will need to convert my setup for my 350. I have a dual snorkle air cleaner on the way too

 

Momar,

I sent the winALDL guy an e-mail about that ECM, we'll see what he comes back with. I've got diacom already, so if there's only a few issues I'll work with him on getting them resolved.

 

Oh, by the way hawk did you go to the other thread I posted a link to? The guy that I believe either designed or helped with winaldl has posted there, and another guy was talking about he got it to work on his 87 ccc setup.

Ben

 

I posted at almost the exact same time you did, but that sounds cool.

Ben