I'm might be looking at replacing my ECM. I believe this is the part number #12633238. Truck is a 2012 Silverado with 5.3L afm. I would like to know if I can program it with efilive, or if I would still need to take it into a dealer. Does anyone know?
I am having a mystery misfire issue p0307, where everything checks out good. I know the lifters have issues, but my rockers seem to be moving good while running, the cam lobes look good, and the lifters are free in the bores. I've checked or replaced everything else. So if I get this problem fixed, I'll want to disable the afm anyway, which I hope I can do with efilive.
So can you avoid going to the dealer for ecm programming by using efilive?