How does EFI Live effect the warranty on the duramax?
'I' personally do not believe this to be the situation, I am not saying what you are telling us is untrue and I am more than happy to be proved wrong.GM can tell if the unit has been reprogamed as well, .
The only permanent memory is the Flash, there is no EEPROM in the CPU.Are there OTP areas of the ECM? Is their some kind of reflash odometer that counts everytime it is programmed?
I think their is a misunderstanding, we are speaking of the PCM ONLY! Not if the motor blows up and some nut job returns it all to stock (ie removing a juice or flashing the computer back) and takes it to the dealer and expects them to warenty it! We are only speaking of flashing the PCM with and EFI Live tune and then having the FPRV go bad, flashing the computer back to stock and taking it to the dealer to have it replaced. Would they be able to see that the computer had been flashed and then re-flashed?If you had a catastrophic failure, they could analyze mechanical components and determine cause of failure. No reason to look at the PCM for a reflash, as the customer could have put it back to stock or just as easily have a harness box and remove it.