Super Chip question....
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
There are no "chips" for the LS3 (or LS2) the only performance tune you can do is to modify the ECM. Lots of Tuners are doing the ECM mods, pick a local one or do a mail order tune.
From previous posts; You lose your GM Warranty when the ECM is modified.
From previous posts; You lose your GM Warranty when the ECM is modified.
Safety Car
Joined: Aug 2007
Posts: 4,836
Likes: 9
From: Rushsylvania Ohio
PCM, not ECM. Other poster is correct as there have not been "chips" used in most vehicles for the last several years. You need a hand held tuner ($300-$600) or a tuner shop to do the tune for you.
Also as stated, no more GM warranty after a tune. If that matters. There might not be much of a warranty for any GM vehicle here pretty soon anyway.
Also as stated, no more GM warranty after a tune. If that matters. There might not be much of a warranty for any GM vehicle here pretty soon anyway.
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
PCM, not ECM. Other poster is correct as there have not been "chips" used in most vehicles for the last several years. You need a hand held tuner ($300-$600) or a tuner shop to do the tune for you.
Also as stated, no more GM warranty after a tune. If that matters. There might not be much of a warranty for any GM vehicle here pretty soon anyway.
Also as stated, no more GM warranty after a tune. If that matters. There might not be much of a warranty for any GM vehicle here pretty soon anyway.
PCM is Powertrain Control Module, engine and trans combined in one Module.
Safety Car
Joined: Aug 2007
Posts: 4,836
Likes: 9
From: Rushsylvania Ohio
http://forums.corvetteforum.com/c6-c...ial-hurry.html
The automatic transmission is controlled by the TCM (transmission control module) which is mounted next to the PCM on the 05 C6 models and is internal to the transmission on the 06's & up.
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
There is NO ECM. Engine is controlled by the PCM. See the following link and tell me where you see ECM anywhere? You won't.
http://forums.corvetteforum.com/c6-c...ial-hurry.html
The automatic transmission is controlled by the TCM (transmission control module) which is mounted next to the PCM on the 05 C6 models and is internal to the transmission on the 06's & up.
http://forums.corvetteforum.com/c6-c...ial-hurry.html
The automatic transmission is controlled by the TCM (transmission control module) which is mounted next to the PCM on the 05 C6 models and is internal to the transmission on the 06's & up.
Your statement and link above show separate modules for the Engine (ECM) and Transmission (TCM).
The C6 has separate ECM and TCM, NOT A PCM.
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Safety Car
Joined: Aug 2007
Posts: 4,836
Likes: 9
From: Rushsylvania Ohio
Yes, I agree there is a seperate TCM. External on the 05 C6 and internal to the tranny on 06 and up C6's.
No where in the link I posted does it say ECM, it only says PCM. I have the GM C6 Service Manuals right in front of me and no where does it say ECM, only PCM.
Go to Gene Culleys website at www.gmpartshouse.com and look up 08 Corvette parts. Type in ECM in the search bar an nothing will be found. Type in PCM and there you go!
http://www.gmpartshouseusa.com/partl...layCatalogid=0
You even say in your first sentence that the PCM controls the engine, so why do you keep saying it is controlled by the ECM?
There where ECM's in cars many years ago, but no longer. Those functions have been integrated into the PCM.
When you do a tune, you are making changes to the PCM for the engine and the TCM for the tranny.
No ECM !!!!!!!!!!!!!!!!!!!!!
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
You even say in your first sentence that the PCM controls the engine, so why do you keep saying it is controlled by the ECM?
There where ECM's in cars many years ago, but no longer. Those functions have been integrated into the PCM.
When you do a tune, you are making changes to the PCM for the engine and the TCM for the tranny.
There where ECM's in cars many years ago, but no longer. Those functions have been integrated into the PCM.
When you do a tune, you are making changes to the PCM for the engine and the TCM for the tranny.
The C6 has TWO separate Modules, an ECM for the Engine and a TCM for the Transmission.
Older cars had PCM's, My '03 SRT4 had a PCM, engine and tranny controls were in one module, my C6 has an ECM AND a TCM. (And a BCM also but who's counting).
Burning Brakes
Joined: Dec 2007
Posts: 1,030
Likes: 0
From: The Villages Florida
The referral to a super chip MIGHT be about the SuperChip company. I have a SuperChip tuner for my 300C, and when I asked them if they will make one for the 'vette, they said no plans to do so. It is a hand held unit that plugs in to retune.
Safety Car
Joined: May 2006
Posts: 4,288
Likes: 129
From: Providence Forge, VA
St. Jude Donor '08-'09-'10-'11-'12
I do not want to hijack this thread but would like clarification on the PCM/ECM debate (maybe in another therad). The P series codes only make reference to ECM and TCM, but there are also references to PCM in the code list such as C0240.
Race Director
Joined: Mar 2005
Posts: 10,399
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From: Austin Texas
Swiftrider08; You seem to trust Chuck of Corvettes of Westchester so check his post #7 on 9-6-07 @ 10:04AM.
I can't find a way to link the post so you'll have to search it yourself. He clearly states ECM vs PCM in this post.
I can't find a way to link the post so you'll have to search it yourself. He clearly states ECM vs PCM in this post.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Is one claim correct and the other not? Are both claims correct? Are both claims incorrect? I have an 07 m6 and when my tuner did a dyno tune(for h/c package) what did he plug the laptop into to make program change? Pcm, ecm???
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
He probably plugged into the OBD2 port to access the ECM and if your car is an automatic the same port gives the tuner access to the TCM.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
CF Senior Member
Joined: Feb 2006
Posts: 23,313
Likes: 25
From: Tucson Arizona
I recall Shopdog (whose mechanical knowledge I respect) once saying there is no "PCM" in the C6. My service manuals list an ECM in the index but not a PCM. There are, however, several references to a PCM within the service manuals. I've seen other GM references to a PCM as well. I believe for the most part, the PCM functions are controlled from within the ECM. My racer friend used to have a locked tune. Whenever adjustments were required, he removed the ECM (not a PCM) and sent it via overnight air back to the tuner.
Although there is no PCM per se in the C6, the term PCM is still referred to as if it was a separate, physical unit.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
I recall Shopdog (whose mechanical knowledge I respect) once saying there is no "PCM" in the C6. My service manuals list an ECM in the index but not a PCM. There are, however, several references to a PCM within the service manuals. I've seen other GM references to a PCM as well. I believe for the most part, the PCM functions are controlled from within the ECM. My racer friend used to have a locked tune. Whenever adjustments were required, he removed the ECM (not a PCM) and sent it via overnight air back to the tuner.
Although there is no PCM per se in the C6, the term PCM is still referred to as if it was a separate, physical unit.
Safety Car
Joined: Aug 2007
Posts: 4,836
Likes: 9
From: Rushsylvania Ohio
Just for future reference, to post a link, just left click on what is in the address bar to highlite it and then right click and hit copy. Go to where you want to post the link and left click, then right click and hit paste. Maybe you already know how to do that, but just in case.
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
Here's the deal.....
Here's the deal.....
ECM stands for "ENGINE CONTROL MODULE".
PCM stands for "POWERTRAIN CONTROL MODULE".
TCM stands for "TRANSMISSION CONTROL MODULE"
BCM stands for "BODY CONTROL MODULE".
EBCM stands for "ELECTRONIC BRAKE CONTROL MODULE".
IPC stands for "INSTRUMENT PANEL CLUSTER or CONSOLE".
Most new cars like the corvette have an ECM as the trans controller is not part of the same unit.
C5 corvettes with automatic transmissions use a PCM as the transmission controller is integral with the engine controller.
But, it's hardly a point to waste time arguing.
Not much different than "You say POTATO...WE SAY PO-TA-TOE".
Either way you say it, it still means the same thing.
Have a look at this thread. It will show some of the different units.
http://forums.corvetteforum.com/c6-z...chuck-cow.html
Chuck CoW