P0303 Diagnostic Trouble Code Discussion for September 2017
Cylinder 3 Misfire Detected
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| Help Request | Posted | |
| 2013 Ford Explorer XLT 3.5L Excessive Emissions, Misfire, MIL Lamp on VIN: 1FM5K8D86D P0303: Misfire 3 cylinder. Have replaced all spark plugs and coil boots, performed compression check 150 psi 1,2,3 cylinders passed leak down check. Moved coils and injectors and still has misfire |
September 05, 2017 | |
| 2013 Ford Explorer XLT 3.5L Excessive Emissions, Misfire, MIL Lamp on VIN: 1FM5K8D86D P0303: Misfire 3 cylinder. Have replaced all spark plugs and coil boots, performed compression check 150 psi 1,2,3 cylinders passed leak down check. Moved coils and injectors and still has misfire |
September 06, 2017 | |
| 2003 BMW Z4 2.5i 2.5L Poor Idle Quality, Misfire VIN: 4USBT33493 P0303: misfire 3. i could really use some help on this one from all those BMW gurus. This z4 came into my shop smoking like a bandit and misfiring. I started with new plugs, Pcv/ cyclone oil seperator and an oil change. After running for a few minutes the smoke cleared up but t... |
September 19, 2017 | |
| 2008 Porsche Cayenne GTS 4.8L Misfire VIN: WP1AD29P18 ... P0303, P0306, P0307. Car runs rough under load around 30-45mph. I can't imagine 4 coils going bad, was thinking a software reflash or a fuel pump. I don't see many of these cars and would appreciate any help. |
September 19, 2017 |
