Hi folks,
Can someone answer a LS1 PCM hardware/os compatibility question for me?
Can I do a full reflash and put a 2007 OS and tune on a 2003 1Mb PCM?
Does anyone know if all of the 1mb PCMs are electrically identical?
They're both Gen III 1Mb PCMs, but I don't know what else may have changed internally from year to year.
If I have a 2007 Silverado V6 that needs a new PCM, and I have a 2003 1Mb PCM on the shelf, can I reflash the 2003 PCM with the later 2007 operating system and tune, and will it work?
My application is actually a conversion: I have the engine and engine harness out of the 2007 that's going into a project vehicle. The wrecker provided a 2003 PCM as a 'compatible' part, but I'm not entirely convinced and don't really want to waste a VIN license if they're wrong. I thought they provided the PCM from the donor car, but they didn't, and I didn't notice that till it was far too late to take it back and swap for a later PCM. I can go buy another PCM but I'd rather save the time and money of getting yet another PCM and use one of the two 2003 1Mb PCMs I have on hand.
Also, I have a stock tune from a 2006 V6 Sierra pickup. If someone had a stock tune for a 2007 Classic Silverado V6, ideally a manual, that would be very helpful too. I suspect the 2006 and 2007 are identical, or at least that either will run my 2007 engine, but don't know that for sure.
Thanks in advance,
Dave