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The ECM they use is a 19259291 can be bought from GM only (Detroit). The VIN in shows to be a 2012 Corvette. The issue is their LS376/525 package is wired to run a fuel pump relay and they put their...

Hey members does anyone know how I can get 12638778 OS into a E67 ecm. I have tried several OEM OS but non are compatible. I have this GMPP LS3 and harness package already installed in a C3 vette....

This is a GMPP OS 12638778.

http://www.tunefiledepot.com/index.php?option=com_content&view=article&id=4&Itemid=3&Manufacturer=12&VehicleType=P&Stock=Y

I am entering the forced induction world for more power on an 04 Gto Ls1 setup that I am putting in my 93 Blazer with a TVS 1900 supercharger. The only issue I am having is I installed a 2 bar Tmap...

There is help in Houston if you want to make the trip.:beer:

I thought about doing that also, I was hoping I was just missing something in the pcm setup. I am already on it.

Anyone tried to hook up an aftermarket tach from the pcm output signal?
I have an 04 GTO engine and pcm in a 1989 chevy truck (about 500 ponies):rockon: The tach will not read pcm output signal and...

Thank You Jesse And Chad For Your Help. $ffff Did Not Recognize But Continued And It Unlocked. I Am Back To Spinning Tires.

goodluck

It does not get that far, but the seed has always been ffff

PCM hardware # 0($ 0), not recognized. May occur for the following
-not a valid oper. sys. or cal.
-PCM not compatible
Tried $ffff no difference.

What going on Chad? I took week off. I tried reconnecting with those calibrations you sent me. Still does not connect. It acts like I need an unlock code.

I have 2000 chevy truck with an LS1 that I programmed about a month ago and it worked great (EFI Live kicks ass). PCM set a check engine light for the EGR system that I dissabled and now is locked...