30 years now as a certified master tech. About 6 years in a GM store in the 90s. I was an AC Delco shop for quite a while so benefitted from the same...
I don't think the PCM is fried I think there's probably some stuff in the background causing it. Only way to tell is to start over with a fresh new,...
Nothing done to vehicle. It has a bad ECM. Trying to replace it with a used one. Bone stock. The original complaint is the EVAP vent solenoid ckt. It...
Hello all. Trying to use GM Techline SPS and MDI to flash a stock cal to a used e38 ECM with same service number (12612384). This is for a 2008 Tahoe...
I've got the same issue with my 2012 Yukon 6.2 E38. Only fix I've found so far is to just adjust the override parameters from 240 or whatever it was...