Empowering DIYers Diagnose and Fix the PO305 Cylinder 5 Misfire with Confidence

The Meaning of the Error · A faulty spark system · A faulty manifold · A mechanical failure of a valve or vent · A vacuum leak · A clogged EGR port ... I have a P0305 error code. The check engine light started blinking at low RPM's. The engine was shaking at these low RPM's as well. 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. p0305 is a cylinder misfire detected on cylinder 5 so it could be no spark(bad coils, bad spark plugs) no fuel( bad injector (intermittent)) or no compression ... Usually when they go bad, either the nozzle gets plugged or worn, or the solenoid stops working all together and you have a dead miss all the ... I got the dreaded P0305 fifth cylinder misfire code. I replaced all three coil packs. I replaced all six spark plugs with Toyota OEM ... It's basically telling you that cyl 5 is misfiring. Start with the cheapest and easiest route. Replace the plug then the wire and possibly a ... P0305 means misfire on Cylinder 5. Never heard of it the way you have described regarding the firing order. Should be the actual cylinder though ... A P0305 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #5. P0305 code - misfire on cylinder 5. Started after a coolant leak, changed the coil pack and spark plug for that cylinder. When code is cleared it's fine.