Well I have been havin a problem tryin to flash my pcm in my 2000 Silvy. First time I tried flashing the truck it went fine till about 45 secs the flashing stopped and said there was checksum error. I will try and reflash truck and it tells me invalid calibration and quits. Then truck wont restart. This has cost me a license since I had to get a new pcm since pcm wasnt in deadpoll but was actually dead. Second time same thing happened but dealer was able to just reflash pcm. Has anyone ever had a problem like this? I have a LS1 bench harness and was going to try and flash it that way but why cant I flash it in truck? Well any help is appreciated, Thanks
Here are the files...