P1351

[Dc8610]

Need help I replaced on my 98 c1500 spark plug and wires, distributor cap and rotor, ignition coil, and ignition control module. Well I put a delphi ICM and the p1351 code pops up so I put the original oem one back on and the p1351 goes away. I returned the new icm and bought a different one from a different brand and it does the same code but the old one takes the code away. Any thoughts on what it may be? TIA

 

[Erik the Awful]

Does your original OEM ignition module work? If so, DON'T THROW IT AWAY! A twenty-three year old GM module is better quality than a brand new one.

 

[Dc8610]

Yes I have it on the truck right now. I just cant understand why with two different brand new ones it will throw a high voltage code but with the OEM one it has no codes. I heard a fuel pump can do this I did a fuel pressure test and with key on it’s at 60 and with engine running it’s at 53-54psi. I have no issues while running she idles a little rough but doesn’t die and when accelerating no hesitation…