Misfire on Cylinder Number two

2006 FORD EDGE

170,000 MILES • 3.5L • 6 CYL • 4WD • AUTOMATIC

ECRESPOL

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Engine threw a misfire code on the second cylinder. I replaced the coil and plug, and the issue persists. I think it might be an ECM issue (I've seen that they can be sent out for repair), but I was hoping to find a PCM wiring diagram so to help me make sure it's not a wiring issue.

In addition to the wiring diagram, any help or suggestions on other things I should be checking would be appreciated.

Jun 15, 2022 at 9:26 AM

SQM

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Hello,

Misfire can happen due to bad plug, coil as well as faulty injector, or improper fuel pressure etc.

Since replacing the plug and coil didn't fix the issue, the best course of action would be to take a look at the typical possibilities.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

I have attached the diagnostic steps for the misfire code below for your reference.

Let me know of any questions.
Thank you.

Images (Click to enlarge)

Jun 15, 2022 at 11:42 AM