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P0354 Diagnostic Trouble Code Discussion for September 2012

Ignition Coil 4 Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0354
Help Request Posted
2004 Chrysler Pacifica 3.5L Stall, Misfire, MIL Lamp on VIN: 2C8GM68444
P0354: 4 ignition coil control circuit. I stuck to the ign coil diagnostics because the #5 cyl was not firing and like I said after replacement it ran good untill it was dropped into gear and driven maybe something is getting pulled apart
September 10, 2012
2004 Ford F-150 Lariat 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTPX12594
P0354: Ignition COP 4 Primary/Secondary Circuit Malfunction. ... before. Truck came in with misfire on multiple cylinders. Replaced all plugs and coils. Still has misfire t idle. Once you give it gas it smoothes out. smoked the intake and found smll pinholes all over the place in the intake manifold. Pulled the intake t...
September 28, 2012