P0351 Empowering Technicians with Expert Ignition Coil Diagnostics

That 351 code means the engine computer is not seeing the expected electrical signal pulse from the coil circuit that the coil is has successfully fired. How to fix a P0351 engine code: Ignition Coil A Primary / Secondary Circuit A P0351 Code is set when the computer (ECM/PCM) detects an issue ... My truck keeps throwing the P0351 code even after changing the coil multiple times. Its the only code the truck is showing. This will see if it is a coil issue or something else. If the misfire stays on cyl 1, you have a wiring harness issue or a PCM failure. If you ... P0351 sets when there is a problem in the circuit from the ASD relay through the coil and back to the engine controller (PCM). This code can set ... The only thing left is to check the ground wiring (control circuit) from the negative side of the coil to the PCM for breaks or damage. P0351 (M) Ignition Coil # 1 Primary Circuit Peak primary circuit current not achieved with maximum dwell time. I would inspect all the wiring ... P0351 means you either have a bad coil or perhaps more likely the coil connector plug has a broken or bad wire (of the three present) going into it. The problem appears to be a loss of the "trigger" (the coil driver circuit) to the one coil. It also seems to be a "heat soaking" thing going on here. P0351 Ignition Coil A Primary/Secondary Circuit Malfunction ... I'm getting this code on first startup. Brand new built motor. ... I've added some ...