Sledneck48
Newbie
Hey everybody... I am having a problem with my 3/4 ton. It came through originally with a 454 i just bought this truck and found this out after hooking up my soulus pro. Well it has a vortec 350 mated to a 4l80e. It ran perfect when I test drove it before buying it, however it shifted firm up through third gear. It came with a superchips programmer 2815. I pluged it in to see what program it was running and it said it was in tow mode. Ok fine but I tried recovering the stock file and it loaded up to 19% then lost communication. Battery voltage was 12.8 volts during recovery. I unplugged the programmer and tried starting the truck and it just cranked and no start. So I believed at this point what happened is I glitched the PCM. I got one today from a salvage yard it said it was out of a 1996 tahoe 5.7 L. I had my doubts but plugged it in and it started... However when I put it in drive it takes off in fourth gear. So my doubts were correct that it wasn't the correct PCM. My question is.... Can I get the correct PCM for this truck that used to have a 454 under the hood but now has a 350 vortec mated to the original 4L80e. Can I give the dealer the numbers off the PCM that I glitched out to get that same PCM new? Does anybody know about this???