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P0354 Diagnostic Trouble Code Discussion for September 2009

Ignition Coil 4 Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0354
Help Request Posted
2002 Jeep Grand Cherokee Limited 4.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4GW48N42
P0354: Ignition Coil 4 Primary Circuit Malfunction. After valve job, 30 amp fuse (#26 in power distribution center)blew within first minute or so of running. Fuse was replaced with same results. This fuse supplys ign COPs, injectors and O2 heater. A third fuse was installed with jumper wires to allow amp probe ...
September 19, 2009