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P0304 Diagnostic Trouble Code Discussion for October 2017

Cylinder 4 Misfire Detected

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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2006 Land Rover Range Rover HSE 4.4L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: SALME15466
P0304: 4 cyl misfire. When you crank cold misfires on multiple cylinders, after it warms up will run smooth, but when you load motor will start to pop in intake then will misfire on cylinder 8. If you let it idle for a while will stop missing and run smooth. I changed plug, coil, a...
October 03, 2017
2009 Volkswagen Tiguan SE 2.0L Hesitation, Surge, Misfire, MIL Lamp on VIN: WVGBV75N49
P0304: Cylinder missfire. Vehicle runs lousy when cold, misfires , seems to backfire through intake or pop sound on acceleration. Smoke test system for vacuum leaks none present. Had replaced ignition coils,and plugs, fuel pressure with scan tool is spot on. When car is warmed up after...
October 25, 2017