Changed [fuel injectors](/topics-fuel-injector-ford/) and...
Responses
J Hall
259 days ago
Hello, my name is \*\*\*\*\* \*\*\*\*\* I will be glad to assist you with this running problem. The check engine light being on tells you there is a trouble code or codes stored in the PCM (powertrain control module). If you can use a code reader or scan tool to retrieve the code, I can diagnose it for you. Or at least tell you what the problem may be. If you don't have a code reader or scan tool, you can take the vehicle to AutoZone or O'Rielly's and they will scan it for you at no charge.
Customer
259 days ago
Okey I will get back to you with code
J Hall
259 days ago
I'll be here. Thank you.
Customer
259 days ago
I got the code it is P356 igntionn coil[Ignition coil](/topics-ignition-coil-ford/) F primary/secondary circuit malfunction
J Hall
259 days ago
Thank you. I'll get right on this. Be back shortly.
J Hall
259 days ago
Okay, the trouble code points to a problem with the #6 cylinder ignition coil. I am assuming when you said "injector coils" in first post you were referring to the ignition coils. When you replaced the ignition coils, did you also replace the [spark plugs](/topics-spark-plug-ford/) boots and spark plugs? Also, you will need to make sure the spark plug boot is not torn or damaged in any way. You could have water intrusion into the connector of the crank position sensor or a faulty crank position sensor. Inspect the connector carefully to make sure the pins have not been corroded and the weatherpack seal is not torn or missing. Here are few other things that can cause this problem:
- Open or short in the Ignition START/RUN circuit
- Open coil driver circuit
- Coil driver circuit shorted to ground
- Damaged coil
- Damaged PCM
- Coil driver circuit shorted to VPWR
Customer
259 days ago
Ok thank you I'll see how it goes
J Hall
259 days ago
You're welcome. If you need any other information, please let me know and I will do all I can to assist you. I wish you well, and thank you for using JustAnswer.
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Changed [fuel injectors](/topics-fuel-injector-ford/) and injection coils running much better and fine when giving gas but at idle it spudders and real rough and now check [engine](/topics-engine-ford/) light came back on 2004 f15...
Changed [fuel injectors](/topics-fuel-injector-ford/) and injection coils running much better and fine when giving gas but at idle it spudders and real rough and now check [engine](/topics-engine-ford/) light came back on 2004 f150 triton Mechanic's Assistant: Does the light stay on, or does it blink? Stays on Mechanic's Assistant: Are you fixing your F150 yourself? What have you tried so far? Yes and just injection coils and fuel injectors have a leak in [exhaust](/topics-exhaust-ford/) I was about to fix Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? Been sitting for about 14 months