P0750 Shift Solenoid 1 Malfunction
P0755 Shift Solenoid B Malfunction
P0734 Gear 4 Incorrect ratio
P1754 CCS (Solenoid) Circuit Malfunction
P0231 Fuel Pump Relay Driver Circuit Failure
P0603 Internal Control Module KAM Error
P0478 Exhaust Pressure Control Valve High Input
P0470 Exhaust Back Pressure Sensor Circuit Malfunction
P1747 EPC Solenoid Short Circuit
P0720 OSS Sensor Circuit Malfunction
P0541 Manifold Intake Air Heater
OK, you say it has an edge and a 6 speed. Pull the PCM out and give me the code. Also, put the PCM back in "stock" and remove the edge. See how it runs.
It sounds like you have the wrong pcm OR your edge is screwing the truck up. All the Auto trans codes and the AIH is leading me down that path. Your early 99 didn't have a AIH.
As of right now, only the P0231 is concerning me. If you are having fueling issues, the problems you are describing can be caused by that. But it is hard to tell with all the random codes.
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