newbie - truck is 98 K2500 Chevy. In process of installing a SBC 427 Dart SHP block stroker. Has AFR aluminum heads and Cust. Grind COMPCAMS Hydraulic roller. OEM EFI (with a 48lb/h rated spider) and ignition with a 0411 PCM upgrade with a custom BBP tune installed. Getting a Crank/Cam correlation OBDII code.
plug control circuit" So, maybe they are talking about the glow plug module. I don't even know where that is, and if I
find it I don't know how to check it. I guess, as a last resort, we will have to have it towed to the GMC dealer and see if they
can determine why it won't start.