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P0303 Diagnostic Trouble Code Discussion for October 2013

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2000 Toyota 4Runner Limited 3.4L Misfire VIN: JT3HN87R3Y
P0303: Cylinder 3 Misfire Detected. Attention Toyota Techs, mystery needs solving. This 4Runner came in with the complaint of a very intermittent misfire condition. The engine would be idling and suddenly run rough, when the customer steps on the gas she claims to hear a popping noise coming fr...
October 02, 2013
2004 Jaguar X-Type 3.0L Misfire, MIL Lamp on VIN: SAJEA51C74
P0303: Cylinder 3 misfire. The engine runs fine at idle and under load with plenty of power. I can not feel the misfires,the check engine light will start to flash and then go into limp mode. I have replaced cylinders 1 3 and 5 coils and plugs moved the injectors to differnt cylinders a...
October 04, 2013
2001 Lincoln LS 3.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LNHM87A01
P0303: Misfire Cylinder 3. I'm getting a P0304, P0303, and P0300 stored in memory. The car runs rough at idle, Fuel Trims show bank 1 as -25% and bank 2 as +25%. I have replaced all spark plugs and #4 coil with no change. EGR Valve is functioning correctly with no leakage. No excessive ...
October 08, 2013
2003 Volkswagen Passat GL 2.8L Misfire cyl #3 VIN: WVWTH63B63
P0303: Cyl 3 misfire. THIS 2.8L V6 HAD A CONSISTENT MISFIRE AT IDLE ON CYL#3. THE MISFIRE COUNTER JUST KEPT COUNTING UP ON THE VAG-COM AS THE ENGINE SAT IN THE SHOP BAY RUNNING AT IDLE. WE SWAPPED THE SPARK PLUGS, FUEL INJECTORS, CHECKED THE COMPRESSION AND THE FUEL PRESSURE, SMOKE...
October 08, 2013
2005 Kia Amanti 3.5L Poor Idle Quality, Misfire VIN: KNALD12415
P0303: Cylinder 3 Misfire Detected. ... slightly rough at idle. It almost feels like a vibration as opposed to a misfire, but that may not be the case. We recently replaced the plugs and wires (maintenance) and it ran fine thereafter for about 1 and 1/2 weeks before the MIL appeared (the custome...
October 11, 2013
2003 Chrysler Town & Country (Van) LXi 3.8L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2C4GP54L93
P0303: misfire 3. Thank you in advance for any assistance today, this vehicle has been driving us up the wall! Sorry for the really long description but I have no other choice, I want you all to have as much background as possible. The main problem with this vehicle is a stalli...
October 14, 2013
2004 Subaru Impreza WRX 2.0L Misfire, MIL Lamp on VIN: JF1GD29664
P0303: Cylinder 3 Misfire Detected. I'm trying to help a good friend out. His car runs extremely rough. CEL blinks under load, misfires consistently. Pulled codes and found misfires in all cylinders. I don't want him to spend a bunch of money throwing parts at this car so we did some testing. We...
October 28, 2013
2003 Honda Civic EX 1.7L Misfire, MIL Lamp on VIN: 1HGEM21993
P0303: Cylinder 3 Misfire Detected. Client replaced spark plugs with new OE plugs, still misfires, test drove fully warmed up, engine misfires at 2000-3000 rpm, at very light load, does not misfire any higher or at idle or heavier loads, all scan data readings look normal while misfiring, plugs ...
October 29, 2013
2007 Hyundai Entourage SE 3.8L Misfire, MIL Lamp on VIN: KNDMC23367
P0303: Cylinder 3 Misfire Detected. ... little help. I have an Entourage that has an intermittent Check engine light for Cylinder #3 misfire, no other codes. Have replace coil and plug, and bank 1 upstream sensor, per tsb. Vehicle never misfires here. This morning, customer stated that this time...
October 29, 2013
2004 Subaru Impreza WRX 2.0L Misfire, MIL Lamp on VIN: JF1GD29664
P0303: Cylinder 3 Misfire Detected. I'm trying to help a good friend out. His car runs extremely rough. CEL blinks under load, misfires consistently. Pulled codes and found misfires in all cylinders. I don't want him to spend a bunch of money throwing parts at this car so we did some testing. We...
October 29, 2013
2000 Toyota 4Runner Limited 3.4L Misfire VIN: JT3HN87R3Y
P0303: Cylinder 3 Misfire Detected. Attention Toyota Techs, mystery needs solving. This 4Runner came in with the complaint of a very intermittent misfire condition. The engine would be idling and suddenly run rough, when the customer steps on the gas she claims to hear a popping noise coming fr...
October 02, 2013
2004 Jaguar X-Type 3.0L Misfire, MIL Lamp on VIN: SAJEA51C74
P0303: Cylinder 3 misfire. The engine runs fine at idle and under load with plenty of power. I can not feel the misfires,the check engine light will start to flash and then go into limp mode. I have replaced cylinders 1 3 and 5 coils and plugs moved the injectors to differnt cylinders a...
October 04, 2013
2001 Lincoln LS 3.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LNHM87A01
P0303: Misfire Cylinder 3. I'm getting a P0304, P0303, and P0300 stored in memory. The car runs rough at idle, Fuel Trims show bank 1 as -25% and bank 2 as +25%. I have replaced all spark plugs and #4 coil with no change. EGR Valve is functioning correctly with no leakage. No excessive ...
October 08, 2013
2003 Volkswagen Passat GL 2.8L Misfire cyl #3 VIN: WVWTH63B63
P0303: Cyl 3 misfire. THIS 2.8L V6 HAD A CONSISTENT MISFIRE AT IDLE ON CYL#3. THE MISFIRE COUNTER JUST KEPT COUNTING UP ON THE VAG-COM AS THE ENGINE SAT IN THE SHOP BAY RUNNING AT IDLE. WE SWAPPED THE SPARK PLUGS, FUEL INJECTORS, CHECKED THE COMPRESSION AND THE FUEL PRESSURE, SMOKE...
October 08, 2013
2005 Kia Amanti 3.5L Poor Idle Quality, Misfire VIN: KNALD12415
P0303: Cylinder 3 Misfire Detected. ... slightly rough at idle. It almost feels like a vibration as opposed to a misfire, but that may not be the case. We recently replaced the plugs and wires (maintenance) and it ran fine thereafter for about 1 and 1/2 weeks before the MIL appeared (the custome...
October 11, 2013
2003 Chrysler Town & Country (Van) LXi 3.8L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2C4GP54L93
P0303: misfire 3. Thank you in advance for any assistance today, this vehicle has been driving us up the wall! Sorry for the really long description but I have no other choice, I want you all to have as much background as possible. The main problem with this vehicle is a stalli...
October 14, 2013
2004 Subaru Impreza WRX 2.0L Misfire, MIL Lamp on VIN: JF1GD29664
P0303: Cylinder 3 Misfire Detected. I'm trying to help a good friend out. His car runs extremely rough. CEL blinks under load, misfires consistently. Pulled codes and found misfires in all cylinders. I don't want him to spend a bunch of money throwing parts at this car so we did some testing. We...
October 28, 2013
2003 Honda Civic EX 1.7L Misfire, MIL Lamp on VIN: 1HGEM21993
P0303: Cylinder 3 Misfire Detected. Client replaced spark plugs with new OE plugs, still misfires, test drove fully warmed up, engine misfires at 2000-3000 rpm, at very light load, does not misfire any higher or at idle or heavier loads, all scan data readings look normal while misfiring, plugs ...
October 29, 2013
2007 Hyundai Entourage SE 3.8L Misfire, MIL Lamp on VIN: KNDMC23367
P0303: Cylinder 3 Misfire Detected. ... little help. I have an Entourage that has an intermittent Check engine light for Cylinder #3 misfire, no other codes. Have replace coil and plug, and bank 1 upstream sensor, per tsb. Vehicle never misfires here. This morning, customer stated that this time...
October 29, 2013
2004 Subaru Impreza WRX 2.0L Misfire, MIL Lamp on VIN: JF1GD29664
P0303: Cylinder 3 Misfire Detected. I'm trying to help a good friend out. His car runs extremely rough. CEL blinks under load, misfires consistently. Pulled codes and found misfires in all cylinders. I don't want him to spend a bunch of money throwing parts at this car so we did some testing. We...
October 29, 2013