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P0303 Diagnostic Trouble Code Discussion for March 2015

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2005 BMW 645Ci 4.4L Misfire VIN: WBAEK73485
P0303: misfire cyl. 3. Cant locate the fault causing misfires on only the right bank cylinders 1-4. The problems starts as soon as the engine is running. Compression seems ok and dead even at 150 psi (low due to valvtronic position). I have spark and good fuel injector operation. I ...
March 02, 2015
2005 BMW 645Ci 4.4L Misfire VIN: WBAEK73485
P0303: misfire cyl. 3. Cant locate the fault causing misfires on only the right bank cylinders 1-4. The problems starts as soon as the engine is running. Compression seems ok and dead even at 150 psi (low due to valvtronic position). I have spark and good fuel injector operation. I ...
March 04, 2015
2007 Scion tC 2.4L Poor Idle Quality, Hesitation, Misfire VIN: JTKDE17707
P0303: Cylinder 3 Misfire Detected. car was brought in for misfire on cylinder #2 and #3 found that they only had 30psi of compression pulled head sent off reinstalled with Toyota parts it starts fine but has very rough idle and no power all the same codes as when we started I read another post ...
March 04, 2015
2005 Honda Civic LX 1.7L No Start VIN: 2HGE516505
P0303: Cylinder 3 Misfire Detected. Vehicle was towed into shop with No Start complaint. Vehicle started on first attempt but appeared to have a irregular misfire. Pulled coils and plugs and found them to have light oil contamination where it appears someone had recently replaced valve cover gas...
March 09, 2015
2005 Ford Expedition Eddie Bauer 5.4L Misfire VIN: 1FMFU175X5
P0303: Missfire. After repair vehicle still had misfire on cylinder #3. Compression is 190 PSI. Performed leak down test is 2%. Scoped cam and crank sensor, wave forms are good. Both cams are in sync. Found noisy waveform on cylinder #3 ignition coil. Isolated #3 wiring from P...
March 20, 2015
2005 Ford Expedition Eddie Bauer 5.4L Misfire VIN: 1FMFU175X5
P0303: Missfire. After repair vehicle still had misfire on cylinder #3. Compression is 190 PSI. Performed leak down test is 2%. Scoped cam and crank sensor, wave forms are good. Both cams are in sync. Found noisy waveform on cylinder #3 ignition coil. Isolated #3 wiring from P...
March 23, 2015
2004 Audi A6 Quattro 2.7L Misfire, MIL Lamp on VIN: WAUCD64B34
P0303: cylindermisfire 3. to all Audi gurus out there. got this A6 pulling my hair. was in a fender bender on the right side. wiring looks ok. has this misfire on just the passenger right bank. replaced the camshaft sensor to no avail. don't know where else to look. help guys. thanks e...
March 27, 2015