Swapping ECM for tuning - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Jeanius · 09-27-2009, 10:40 PM

What do you guys think about buying a seperate ECM and using that for a custom tune, and keeping the original, well original, in case the warranty is ever needed

I really want some long tubes and the tune only vararam but I really dont want to void my warranty

Thoughts?

EAkrish · 09-27-2009, 10:46 PM

just have your tuner save the stock tune. This way if there ever is an issue he can just flash it back to stock.....

Jeanius · 09-27-2009, 10:54 PM

Quote:

Originally Posted by EAkrish

just have your tuner save the stock tune. This way if there ever is an issue he can just flash it back to stock.....

But cant the tech's see that the ECM has been reflashed?

dragonZ28 · 09-27-2009, 10:57 PM

Quote:

Originally Posted by Jeanius

But cant the tech's see that the ECM has been reflashed?

Yup, get another PCM. The techs can tell if yours has been flashed and bye-bye warranty.

Jeanius · 09-27-2009, 11:00 PM

Quote:

Originally Posted by dragonZ28

Yup, get another PCM. The techs can tell if yours has been flashed and bye-bye warranty.

Thanks dragon, so you think my plan will work? I mean, is there anything that would be obvious if I one day reinstalled the OG ECM? Would they be able to tell it was disconnected and reconnected?

dragonZ28 · 09-27-2009, 11:05 PM

Quote:

Originally Posted by Jeanius

Thanks dragon, so you think my plan will work? I mean, is there anything that would be obvious if I one day reinstalled the OG ECM? Would they be able to tell it was disconnected and reconnected?

Warranty can't be legally voided if you remove it to clean your engine bay for that car show, can it?

EDIT:
Try to only use the flashed PCM when you plan on running the car hard. If you are heavily modded, you will need to keep the flashed PCM at all times to run properly.

Kelso · 09-27-2009, 11:15 PM

how big of deal is it to change them and where do u get one

Kilo-9 · 09-27-2009, 11:27 PM

This is exactly what I did with my GMC...I bought a second set of modules (PCM/TCM) and had them tuned. The stock modules are in a box in the garage should I require warranty service. However, I truly believe that if the Techs dig deep enough, they will be able to tell that the modules have been swapped. Something I've read about timelines in the programming.

Jeanius · 09-27-2009, 11:30 PM

Quote:

Originally Posted by Kilo-9

This is exactly what I did with my GMC...I bought a second set of modules (PCM/TCM) and had them tuned. The stock modules are in a box in the garage should I require warranty service. However, I truly believe that if the Techs dig deep enough, they will be able to tell that the modules have been swapped. Something I've read about timelines in the programming.

Does the LS3 M6 need both PCM/TCM??

Kilo-9 · 09-27-2009, 11:56 PM

The TCM is for the auto transmission in the trucks...M6 shouldn't have one. I'm not sure about the L99s, though...

SSouthernboy · 09-28-2009, 12:16 AM

If you need an ECM, I have a spare I was planning on using, but then decided I will get a cam soon, so warranty will be gone anyways. Let me know if interested. It's for a SS M6.

EAkrish · 09-28-2009, 12:56 AM

Some ecus are flashed multiple times from the factory, even 5-6 or even ten times. Just an FYI. This ensures optimum qc.

1320junkie · 09-28-2009, 01:02 AM

http://www.camaro5.com/forums/showthread.php?t=42403

EAkrish · 09-28-2009, 01:06 AM

Very good point, forgot about that thread!!!!!!!!

09-27-2009, 10:40 PM	#1
Jeanius Drives: Blk/Blk 2018 Sierra SLT Join Date: Dec 2006 Location: Golden State Posts: 2,925	Swapping ECM for tuning What do you guys think about buying a seperate ECM and using that for a custom tune, and keeping the original, well original, in case the warranty is ever needed I really want some long tubes and the tune only vararam but I really dont want to void my warranty Thoughts? __________________ SOLD: 2SS LS3 M6 - MGW - Dynatech LT's HF Cats - Magnaflow Street CB - ADM Race CAI - Pedders Xa Coilovers - Pfadt Sways TRADED: 2016 2SS M6

09-27-2009, 10:46 PM	#2
EAkrish Scout Sniping Drives: 2010 Ford F150 Lariat SuperCrew Join Date: Mar 2009 Location: Tampa, FL Posts: 762	just have your tuner save the stock tune. This way if there ever is an issue he can just flash it back to stock..... __________________ Eric Previous Car:1SS/CGM 6MT w/ Sunroof & FACTORY BLUETOOTH!!!: New Era OTR, Steeda Short Shifter, Ported TB, Stg 2 ported intake manifold, Fasterproms, Poor man down pipes, MBRP 3" Exhaust!!! Now I drive a F150 Supercrew

09-27-2009, 11:15 PM	#7
Kelso Drives: 99 camaro Join Date: Sep 2009 Location: Tivoli, Tx Posts: 223	how big of deal is it to change them and where do u get one __________________ Soon to own: 1SS CGM M6

09-27-2009, 11:27 PM	#8
Kilo-9 Dog Is My Copilot Drives: 2011 2SS/RS LS3 Join Date: Jun 2009 Location: Pittsburgh, PA Posts: 1,394	This is exactly what I did with my GMC...I bought a second set of modules (PCM/TCM) and had them tuned. The stock modules are in a box in the garage should I require warranty service. However, I truly believe that if the Techs dig deep enough, they will be able to tell that the modules have been swapped. Something I've read about timelines in the programming. __________________

09-27-2009, 11:56 PM	#10
Kilo-9 Dog Is My Copilot Drives: 2011 2SS/RS LS3 Join Date: Jun 2009 Location: Pittsburgh, PA Posts: 1,394	The TCM is for the auto transmission in the trucks...M6 shouldn't have one. I'm not sure about the L99s, though... __________________

09-28-2009, 12:16 AM	#11
SSouthernboy Drives: 2010 CGM 2SS/RS Join Date: Dec 2008 Location: Houston, TX Posts: 114 View My Garage	If you need an ECM, I have a spare I was planning on using, but then decided I will get a cam soon, so warranty will be gone anyways. Let me know if interested. It's for a SS M6.

09-28-2009, 12:56 AM	#12
EAkrish Scout Sniping Drives: 2010 Ford F150 Lariat SuperCrew Join Date: Mar 2009 Location: Tampa, FL Posts: 762	Some ecus are flashed multiple times from the factory, even 5-6 or even ten times. Just an FYI. This ensures optimum qc. __________________ Eric Previous Car:1SS/CGM 6MT w/ Sunroof & FACTORY BLUETOOTH!!!: New Era OTR, Steeda Short Shifter, Ported TB, Stg 2 ported intake manifold, Fasterproms, Poor man down pipes, MBRP 3" Exhaust!!! Now I drive a F150 Supercrew

09-28-2009, 01:02 AM	#13
1320junkie Drives: The Imperial Army Join Date: Feb 2009 Location: The Darkside Posts: 15,742	http://www.camaro5.com/forums/showthread.php?t=42403

09-28-2009, 01:06 AM	#14
EAkrish Scout Sniping Drives: 2010 Ford F150 Lariat SuperCrew Join Date: Mar 2009 Location: Tampa, FL Posts: 762	Very good point, forgot about that thread!!!!!!!! __________________ Eric Previous Car:1SS/CGM 6MT w/ Sunroof & FACTORY BLUETOOTH!!!: New Era OTR, Steeda Short Shifter, Ported TB, Stg 2 ported intake manifold, Fasterproms, Poor man down pipes, MBRP 3" Exhaust!!! Now I drive a F150 Supercrew

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