Join Now
International Automotive Technicians Network

P0303 Diagnostic Trouble Code Discussion for July 2007

Cylinder 3 Misfire Detected


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0303
Help Request Posted
1997 Dodge Intrepid 3.5L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2B3HD46F7V
P0303: Cylinder 3 Misfire Detected. ... replaced the intake gasket spark plugs and wires with no improvement all 6 injectors ohm to the same value of 13.2ohms checked compression ok at 130psi fuel pressure is in specs. checked for vaccume leaks non found this car has a P0303 code and a noticeabl...
July 05, 2007
2001 Ford Explorer XLS 5.0L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1FMZU83P2Z
P0303: cly. 3 missfire. This one is driving me crazy. It came in with check engine lamp and a missfire. The codes were random cly. missfire and cly #3 missfire. I pulled #3 plug the gap was about 70. I replaced all the plugs and wires. Still runs the same. I have a good coil and I sw...
July 05, 2007
2002 Dodge Dakota SLT 3.9L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1B7GL42X22
P0303: Cylinder 3 Misfire Detected. ... intermittently after it is driven about two miles either cold or hot. it will shake under load and backfires. it also boggs out very bad. once these symptoms go away it runs great. we scanned it and found the codes listed as history. the only code that is ...
July 09, 2007
2001 Ford Explorer XLS 5.0L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1FMZU83P2Z
P0303: cly. 3 missfire. This one is driving me crazy. It came in with check engine lamp and a missfire. The codes were random cly. missfire and cly #3 missfire. I pulled #3 plug the gap was about 70. I replaced all the plugs and wires. Still runs the same. I have a good coil and I sw...
July 09, 2007
1997 Dodge Intrepid 3.5L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2B3HD46F7V
P0303: Cylinder 3 Misfire Detected. ... replaced the intake gasket spark plugs and wires with no improvement all 6 injectors ohm to the same value of 13.2ohms checked compression ok at 130psi fuel pressure is in specs. checked for vaccume leaks non found this car has a P0303 code and a noticeabl...
July 10, 2007
2000 Nissan Maxima GLE 3.0L Hesitation, Misfire, MIL Lamp on VIN: JN1CA31D3Y
P0303: Cylinder 3 Misfire Detected. ... #3.repaired misfire and cleared codes.car was driven approx 2k miles.came back with p0171 and p0174.checked for leaks and replaced front o2 sensors.car came back in 1200 miles with lean codes.we checked all sensors and couldn't find a problem.cleared codes...
July 12, 2007
2002 Dodge Dakota SLT 3.9L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1B7GL42X22
P0303: Cylinder 3 Misfire Detected. ... intermittently after it is driven about two miles either cold or hot. it will shake under load and backfires. it also boggs out very bad. once these symptoms go away it runs great. we scanned it and found the codes listed as history. the only code that is ...
July 13, 2007
2002 Mercedes-Benz S600 5.8L Misfire, MIL Lamp on VIN: WDBNG78J72
P0303: Cyl 3 misfire. ... been in and out several times. The latest problem has become a mystery. The car is running on only the left bank (cylinders 7-12). The right bank (cylinders 1-6) is dead. The car runs very smooth but has very little power. After looking at several misfire ...
July 16, 2007
2003 Nissan Sentra SE-R 2.5L Misfire VIN: 3N1AB51D23
P0303: Cylinder 3 Misfire Detected. Vehicle originally came in with Cyl #3 plug gap closed, complaint was misfire. Install new plugs, Check freeze frame, and fuel trims normal. Let vehicle go, came back 3 days later with Cyl #1&4 plug gaps closed. Swap coils into cyl #2, and have not had a p...
July 19, 2007
1997 Dodge Intrepid 3.5L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2B3HD46F7V
P0303: Cylinder 3 Misfire Detected. ... replaced the intake gasket spark plugs and wires with no improvement all 6 injectors ohm to the same value of 13.2ohms checked compression ok at 130psi fuel pressure is in specs. checked for vaccume leaks non found this car has a P0303 code and a noticeabl...
July 05, 2007
2001 Ford Explorer XLS 5.0L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1FMZU83P2Z
P0303: cly. 3 missfire. This one is driving me crazy. It came in with check engine lamp and a missfire. The codes were random cly. missfire and cly #3 missfire. I pulled #3 plug the gap was about 70. I replaced all the plugs and wires. Still runs the same. I have a good coil and I sw...
July 05, 2007
2002 Dodge Dakota SLT 3.9L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1B7GL42X22
P0303: Cylinder 3 Misfire Detected. ... intermittently after it is driven about two miles either cold or hot. it will shake under load and backfires. it also boggs out very bad. once these symptoms go away it runs great. we scanned it and found the codes listed as history. the only code that is ...
July 09, 2007
2001 Ford Explorer XLS 5.0L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1FMZU83P2Z
P0303: cly. 3 missfire. This one is driving me crazy. It came in with check engine lamp and a missfire. The codes were random cly. missfire and cly #3 missfire. I pulled #3 plug the gap was about 70. I replaced all the plugs and wires. Still runs the same. I have a good coil and I sw...
July 09, 2007
1997 Dodge Intrepid 3.5L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2B3HD46F7V
P0303: Cylinder 3 Misfire Detected. ... replaced the intake gasket spark plugs and wires with no improvement all 6 injectors ohm to the same value of 13.2ohms checked compression ok at 130psi fuel pressure is in specs. checked for vaccume leaks non found this car has a P0303 code and a noticeabl...
July 10, 2007
2000 Nissan Maxima GLE 3.0L Hesitation, Misfire, MIL Lamp on VIN: JN1CA31D3Y
P0303: Cylinder 3 Misfire Detected. ... #3.repaired misfire and cleared codes.car was driven approx 2k miles.came back with p0171 and p0174.checked for leaks and replaced front o2 sensors.car came back in 1200 miles with lean codes.we checked all sensors and couldn't find a problem.cleared codes...
July 12, 2007
2002 Dodge Dakota SLT 3.9L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1B7GL42X22
P0303: Cylinder 3 Misfire Detected. ... intermittently after it is driven about two miles either cold or hot. it will shake under load and backfires. it also boggs out very bad. once these symptoms go away it runs great. we scanned it and found the codes listed as history. the only code that is ...
July 13, 2007
2002 Mercedes-Benz S600 5.8L Misfire, MIL Lamp on VIN: WDBNG78J72
P0303: Cyl 3 misfire. ... been in and out several times. The latest problem has become a mystery. The car is running on only the left bank (cylinders 7-12). The right bank (cylinders 1-6) is dead. The car runs very smooth but has very little power. After looking at several misfire ...
July 16, 2007
2003 Nissan Sentra SE-R 2.5L Misfire VIN: 3N1AB51D23
P0303: Cylinder 3 Misfire Detected. Vehicle originally came in with Cyl #3 plug gap closed, complaint was misfire. Install new plugs, Check freeze frame, and fuel trims normal. Let vehicle go, came back 3 days later with Cyl #1&4 plug gaps closed. Swap coils into cyl #2, and have not had a p...
July 19, 2007