Replacement ECM to Save Warranty? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

GRSCAMARO · 09-08-2010, 10:03 AM

I was wondering if removing your stock ECM and replacing it with a modified ECM would work to save the warranty. That is, make all of the mods to a "spare" ECM. If you have a warranty issue, reinstall the stock ECM before taking the car to the dealer. Will the dealer know the ECM has been out of the car?

Of course if you have a supercharger or something else major, this is a mute point.

Just a thought.

Rogue Leader · 09-08-2010, 12:06 PM

Theoretically it could work. Theres a couple problems, firstly you cant buy a new ECM form GM, its a restricted part. Secondly I don't know if the ECM keeps odometer data but its likely that when they hook the computer up to your car they will see a discrepancy between the BCM (or whatever controls the odometer) and ECM. Or maybe they won't, we really wouldn't know without trying it.

that said, some dealers just don't care.

Russell James · 09-08-2010, 12:15 PM

No it won't work. This one saves the mileage accumulated, so when you put it back in, it will be missing the miles you accumulated while using the other one. Plus the issue of trying to buy one, and get it programmed...

GRSCAMARO · 09-08-2010, 03:07 PM

I guess I will leave the 2010 alone and keep tweaking my LT1 in the 69.

09-08-2010, 10:03 AM	#1
GRSCAMARO RS 10 SS Drives: 2010 ABM RS/2SS L99 Join Date: Jan 2010 Location: Melbourne, FL Posts: 452 View My Garage	Replacement ECM to Save Warranty? I was wondering if removing your stock ECM and replacing it with a modified ECM would work to save the warranty. That is, make all of the mods to a "spare" ECM. If you have a warranty issue, reinstall the stock ECM before taking the car to the dealer. Will the dealer know the ECM has been out of the car? Of course if you have a supercharger or something else major, this is a mute point. Just a thought. __________________ Best 1/4 Mile Run: 11/20/2010 SGMP 13.299 @ 106 mph (2.05s 60ft) Mods to Date: Painted Rally Stripes by Body's by Doug ABM Painted Splash Guards & Engine Cover Tinted Windows by Sunbusters CAI Kit by Cold Air Inductions (installed at C5FestI)

09-08-2010, 12:06 PM	#2
Rogue Leader Iatefiberglassinsulation Drives: 2010 Camaro 2SS M6 Join Date: Oct 2008 Location: Long Island Posts: 3,601 View My Garage	Theoretically it could work. Theres a couple problems, firstly you cant buy a new ECM form GM, its a restricted part. Secondly I don't know if the ECM keeps odometer data but its likely that when they hook the computer up to your car they will see a discrepancy between the BCM (or whatever controls the odometer) and ECM. Or maybe they won't, we really wouldn't know without trying it. that said, some dealers just don't care. __________________ 2010 Chevrolet Camaro SS - was daily driver, now toy 2020 Alfa Romeo Giulia Quadrifoglio - Daily Driver 2017 Mercedes Benz GLE 350 - Wifes Car 2008 Chevy Silverado 2500 HD LT 6.0 - Tow Vehicle 1991 Alfa Romeo 164S - Project Car 1994 Volkswagen Golf - Race Car "Like" my race team on Facebook: http://www.facebook.com/farfrumwinnin

09-08-2010, 03:07 PM	#4
GRSCAMARO RS 10 SS Drives: 2010 ABM RS/2SS L99 Join Date: Jan 2010 Location: Melbourne, FL Posts: 452 View My Garage	I guess I will leave the 2010 alone and keep tweaking my LT1 in the 69. __________________ Best 1/4 Mile Run: 11/20/2010 SGMP 13.299 @ 106 mph (2.05s 60ft) Mods to Date: Painted Rally Stripes by Body's by Doug ABM Painted Splash Guards & Engine Cover Tinted Windows by Sunbusters CAI Kit by Cold Air Inductions (installed at C5FestI)

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09-08-2010, 12:15 PM	#3
Russell James Drives: '15 SS 1LE, '69 Z28 drag car Join Date: Dec 2009 Location: Mich Posts: 4,482	No it won't work. This one saves the mileage accumulated, so when you put it back in, it will be missing the miles you accumulated while using the other one. Plus the issue of trying to buy one, and get it programmed...