I recently replaced the plug coil for cylinder one, on my wife's V6 Ford Escape. Everything was working fine, till the other day when she told me it was running rough and the check engine light was on again. Took it to have the code read and got: P0351, Primary/Secondary Ignition. What are some things I can troubleshoot, or what are some common causes for this code. Any help would be greatly appreciated. Thanks.
I think this has a coil pack, if so it is a common failure it will give a random misfire code most cases. and also the crank sensors are known to fail .. jay
Is the coil pack in addition to the coil on plug, or would it be one or the other?
does it have the coil on plug ? these can fail at the tip of the plug boot . it is the carbon build up from the valve cover leaking small amounts of oil on the boot, you can remove the plug spray the area out with a little bit of carb cleaner and clean the boot also, this can be a quick temporary fix .. . get back to me on how it all went .. jay .. motorwiz longwood Florida.. knowledge is KING spread it around, it's the one thing you can take with you when you die ! live long and prosper J
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Trouble Code: P0300
Multiple Cylinder Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or EVAP system
Base engine mechanical fault that affects two or more cylinders
Erratic or interrupted CKP or CMP Sensor signals
Fuel delivery component fault that affects two or more cylinders (i.e., a contaminated, dirty or sticking fuel injector)
Trouble Code: P0302
Cylinder 1-10 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or EVAP system
Base engine mechanical fault that affects only one cylinder
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
Trouble Code: P0305
Cylinder 1-10 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or EVAP system
Base engine mechanical fault that affects only one cylinder
Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)
Trouble Code: P0351
Ignition Coil No. 1, 2 or 3 Primary Circuit
Possible Causes:
ASD relay power circuit to the ignition coil is open
Ignition Coil No. 1, 2 or 3 primary "driver" circuit open or grounded
Ignition Coil No. 1, 2 or 3 is damaged or it has failed
Trouble Code: P0352
Ignition Coil No. 1-8 Primary Circuit
Possible Causes:
ASD relay power circuit to the ignition coil is open
Ignition coil primary "driver" circuit open or grounded
Trouble Code: P0353
Ignition Coil No. 1-8 Primary Circuit
Possible Causes:
ASD relay power circuit to the ignition coil is open
Ignition coil primary "driver" circuit open or grounded
Ignition coil is damaged or it has failed
PCM has failed Ignition coil is damaged or it has failed
PCM has failedPCM has failed
Ignition system problem (coil or plug) in only one cylinder
Ignition system problem (coil or plug) in only one cylinder
Ignition system problem (coil or plug) in two or more cylinders
Vehicle driven with low fuel pressure or while very low on fuel
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