P0305 Code Diagnostic A Comprehensive Guide for DIYers

My P0305 this week is apparently from a leaking valve cover that soaked the plug cylinder. The minor oil leak has been going MANY thousands of ... Start the Jeep back up and start moving......at sometime just after this the MIL comes on with the P0305 code. I have never seen a flashing ... I took it to autozone and they read the code PO305 or whatever... and said its a misfire on #5. My dad used to be a mechanic, so he fixed what ... P0305 is Cylinder 5 Misfire Detected. If that is what you had your mechanic repair, then take it back there...because it obviously didn't work. I've seen lists of possible causes, usually consisting of some combination of spark plugs, spark plug wires, ignition coil, injectors, toasted injector wiring ... Had my code reader with me, and pulled P0305 (cylinder #5 misfire). I will check the coil packs for primary and secondary resistance tonight. I got the dreaded P0305 fifth cylinder misfire code. I replaced all three coil packs. I replaced all six spark plugs with Toyota OEM ... The fact that your are only getting P0305 more than likely points to a Fuel Injector issue on Cylinder 5. Before replacing the injector, I would ... Continuing to drive with a P0305 code (misfire in the fifth cylinder) can lead to reduced performance, poor fuel economy, increased emissions, ... At 101k it started misfiring and running like crap. All of the sudden, no warning and gave code p0305. I changed plugs, wires, and coil pack, because they ...