I have customers truck that's driving me up the wall. I cannot get the tune to finish programing. Fails w/ error$0331. I was able to get it to load once,......long story short my laptop decided to shut down and killed the ECM. Got another one and programmed latest cals from GM via MDI. Then tried to once again program DSP5 tune to no avail. Right now I have a very pissed off customer and I myself am on the edge of mental breakdown over this thing. Im also out 2 vins lic. at this time on this truck. Anyway its 07 c2500 (classic) LBZ. E35A. I have spent countless hours trying to figure something out. I will check back shortly maybe theres someone on here today.....
Jason
Also when the tune did load on the previous ECM the dsp volatage pid would constanly show 4.68V. Never would switch tunes. I have checked the switch and its seems to be good, this is a Kory Willis tune if that matters.