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Ecotec engine management summary w/ PinOuts

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Ecotec engine management summary w/ PinOuts

Old 12-07-2007, 07:08 PM
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But if they did, the code is the same for both the 2005 and 2006. So yes, it would work, if they did it.
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Old 01-08-2008, 01:59 AM
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Question

Originally Posted by WopOnTour View Post
TCM used in the 2003-2006 Cobalt/ION/Pursuit/G5 equipped with a 4T45E is known as a T42
(Still checking on 07)
Wop
so your saying that any of these vehicles with the 4t45e have interchange able tcm's. so i could take a tcm from an 03 ion and put it into an 05 cobalt?
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Old 01-09-2008, 01:01 AM
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Yes, with a great big but...

...but, you would need to have the TCM reflashed by a GM dealer to match the VIN number of the vehicle you where sticking it in, and with the latest software version for the chassis.

Basically put, the hardware is exactly the same. The software is different.
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Old 01-09-2008, 02:38 PM
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Originally Posted by Halfcent View Post
Yes, with a great big but...

...but, you would need to have the TCM reflashed by a GM dealer to match the VIN number of the vehicle you where sticking it in, and with the latest software version for the chassis.

Basically put, the hardware is exactly the same. The software is different.
that sounds easy enough to do....
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Old 02-09-2008, 06:59 PM
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does anyone know the pinouts or the 2007 2.2 ecu yet...
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Old 03-30-2008, 07:29 PM
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Originally Posted by Halfcent View Post
Deltas:
2003-2006 L61 Ions
2005-2006 L61 Cobalts
ECM: E16A
TCM: T42
So according to this I can tune my trans with HPT but not my engine right? A friend of mine has HPT on his computer to tune his GP GTP and if this is possible I may just have him increase my line pressure without getting a B&M Shift Plus.

Also by that logic since HPT can talk to my trans it could also delete/raise my speed limiter since that would be directly related to transmission function and has nothing to do with engine function right? Same with shift points(although that doesnt matter right now since the engine is all stock)?
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Old 03-30-2008, 07:33 PM
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so much for the E16a support via HPT. That **** will never come out. Been on the back burner for a long time.
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Old 03-30-2008, 07:36 PM
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subscribed for the awesome pinouts
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Old 03-31-2008, 04:46 PM
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Bump for my question.
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Old 03-31-2008, 05:15 PM
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Originally Posted by tru2nrtt777 View Post
So according to this I can tune my trans with HPT but not my engine right? A friend of mine has HPT on his computer to tune his GP GTP and if this is possible I may just have him increase my line pressure without getting a B&M Shift Plus.

Also by that logic since HPT can talk to my trans it could also delete/raise my speed limiter since that would be directly related to transmission function and has nothing to do with engine function right? Same with shift points(although that doesnt matter right now since the engine is all stock)?
Unfortunately, no, that's all incorrect.

In order for HPT to get to your trans controller, it has to go through the engine controller. The trans controller is a slave device. And since HPT can not communicate with the ECM, it won't be able to get to the TCM.

Additionally, the speed limiter is an Engine control function, not a trans function.
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Old 03-31-2008, 05:20 PM
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Originally Posted by Halfcent View Post
Unfortunately, no, that's all incorrect.

In order for HPT to get to your trans controller, it has to go through the engine controller. The trans controller is a slave device. And since HPT can not communicate with the ECM, it won't be able to get to the TCM.

Additionally, the speed limiter is an Engine control function, not a trans function.
I can verify what Halfcent has said. I've tried to communicate with an 06 L61 Cobalt with HPTuners and it will not work. It treats the entire system as a single computer and if it can't talk with the ECM, it fails.
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Old 03-31-2008, 09:42 PM
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F***ing gay!

I cant believe that... Stupid GM... Doesnt it look like it should on paper though.
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Old 07-02-2008, 12:59 PM
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A friend of mine who is a Cobb tuner(actually took the classes and everything) for subies and evos is wanting to play around with my e16a, he said if he can pill the PROM off my computer he could reflash it however I want it. He told me I could get up with him Sunday if I am not working. He also said that if it didnt work I could use the 2.4 auto ECU and it should run fine, then I could have tuning ability... It would run rich until tuned but it should be plug and play. If he finds the loop it looks like NC has an official 2.2 tuner.
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Old 07-02-2008, 03:01 PM
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Originally Posted by tru2nrtt777 View Post
A friend of mine who is a Cobb tuner(actually took the classes and everything) for subies and evos is wanting to play around with my e16a, he said if he can pill the PROM off my computer he could reflash it however I want it. He told me I could get up with him Sunday if I am not working. He also said that if it didnt work I could use the 2.4 auto ECU and it should run fine, then I could have tuning ability... It would run rich until tuned but it should be plug and play. If he finds the loop it looks like NC has an official 2.2 tuner.
This has been discussed in dozens (maybe hundreds?) of other threads. Sounds like your buddy probably isnt real familiar with late-model GM electronic control systems.e.g. There is no PROM to "pull" as the firmware and calibration details are all part of flashable ROM embedded directly into the hardware.In a nutshell, besides simple basic stuff like different connectors and such there are other more serious "issues" and significant compatabilities with things such as differences in the IGN systems (and silly annoying things such as incompatible network IDs) that make swapping ECMs a difficult, if not impossible, solution (well not technically IMPOSSIBLE-you can accomplish almost anything with enough $$)
Good luck with that...

WOT

Last edited by WopOnTour; 07-02-2008 at 10:26 PM.
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Old 07-02-2008, 10:09 PM
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I'll be sending him a link to this to see what he thinks...
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Old 07-03-2008, 06:10 AM
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the 2.2 and 2.4 computers are NOT swappable
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Old 07-03-2008, 06:20 AM
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Originally Posted by lightinbalt View Post
the 2.2 and 2.4 computers are NOT swappable
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Old 07-03-2008, 06:28 AM
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I've heard that the no lift shift of the 08 SS/TC is all computer controlled (no physical parts)...if the LNF uses a PCM like the one in a 06 SS/SC does that mean someone may be able to get no lift shift on an SS/SC...or perhaps its a slave module? - I dont know much about this subject its just an idea being thrown out there. - But then again the SS/TC needs to be in performance mode to utilize that function where the SS/SC doesnt have such a thing so maybe it wouldn't work - but hypothetically could you reprogram an LNF SS/TC computer and slap it on a LSJ car with everything adjusted just right?.
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Old 07-03-2008, 11:09 AM
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Probably not. Flash tuning programs have the ability to modify the parameters of existing programs. They can not write completely new code.
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Old 07-03-2008, 02:52 PM
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Originally Posted by Halfcent View Post
Probably not. Flash tuning programs have the ability to modify the parameters of existing programs. They can not write completely new code.
That, and the fact that the LNF turbos use a Bosch ME9 ECM which is totally incompatible with almost any of the existing LSJ hardware...
WOT
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Old 07-04-2008, 12:03 AM
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i have never felt more dumb in my life haha, i guess that it is good that i realize this and am not too confident, i am about to purchase the HPtuner and am not sure A.) which one, such as the pro edition or the normal one, and B.) how do i unlock the horespower this engine has, i hear that they tuned it conservatively but how do i undo that? lol i have read a lot but i see moar in my future!
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Old 07-04-2008, 12:38 AM
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HPTuners is not for the amateur tuner. You need to know what you are doing. I would actually suggest taking you car to a shop to have a tune made rather then trying to do it yourself. It will probably cost you less too.
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Old 07-04-2008, 01:36 AM
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well, i still wanna learn it so maybe i could just buy a crappy car and mess with the tuning on it lol, but for my car, i may bring it somewhere just to make sure and hopefully get some kind of warranty.
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Old 07-07-2008, 04:50 PM
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Originally Posted by lightinbalt View Post
the 2.2 and 2.4 computers are NOT swappable
Proof?
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Old 07-07-2008, 05:55 PM
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Originally Posted by tru2nrtt777 View Post
Proof?
Experience.

Here's a question for you. What would make you think that you can swap them? They are completely different.
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