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P0303 Diagnostic Trouble Code Discussion for June 2009

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2004 Cadillac SRX 3.6L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GYEE63754
P0303: Cylinder 3 Misfire Detected. Hello good technicians out there. Here is the story. This Cadillac came in with a MIL on. We scanned the computer and found a P0420 code (Catalyst efficiency) as well as multiple cylinder missfires. Because of the millage we went ahead and replaced the spark p...
June 03, 2009
2007 Ford Focus SES 2.0L Poor Idle Quality, Misfire VIN: 1FAFP34N17
P0303: cylinder 3 misfire. ... engine light is on because of the misfire. if you clear the codes and run the car in park or neutral around 1500 to 1800 the engine misses like crazy and codes po300 p0301 p0302 p0303 p0304 all come back at the same time. i...
June 04, 2009
2002 Kia Sedona EX 3.5L Hesitation, Misfire, MIL Lamp on VIN: KNDUP13192
P0303: Cylinder 3 Misfire Detected. thanks for all the help in advance, this kia has a slight miss on take off then goes like a bandit down the road.I have done all I could think off the only major thing I found wrong was the tone wheel on the crank gear had spun about a 1/4 inch from where it n...
June 09, 2009
1997 Lincoln Town Car 4.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LFMS33K33
P0303: misfire3. Im hoping some had this problem and can help me.Am i overlooking something Is there something else that controls the pulse because i stumped on this one.Any help would greatly appreciated.Im counting on you guys PLEASE!
June 09, 2009
2002 Toyota Highlander 3.0L Misfire VIN: JTEHF21A52
P0303: Cylinder 3 Misfire Detected. Customer concern was hesitation and check engine light. Found a consistent code P0171 for lean exhaust and no sign of symptom and fuel trim appeared normal under ALL conditions. Days later codes for all three bank#1 cylnders (1,3,& 5) showed misfire code...
June 09, 2009
2004 Kia Sorento EX 3.5L Cuts out, MIL Lamp on VIN: KNDJC73314
P0303: Cylinder 3 Misfire Detected. ihave this kia that is setting misfire codes and under a load it is popping through the intake.sometimes the vehicle runs good,but majority of the time it runs bad. the right bank is leaning out and the converter is getting red hot.bank 1 was 746 degrees and b...
June 11, 2009
2002 Subaru Impreza WRX 2.0L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: JF1GD29632
P0303: Cylinder 3 Misfire Detected. subaru tech, please help on this one. car came in with system too lean and misfire code. LTFT 14.8% STFT 17.2% road test vehicle, car loss power, turbo doesn't kick in like the way it suppose [...] be.fuel trim keep going up after we erease dtc. install smoke ...
June 12, 2009
2003 Porsche Boxster Roadster 2.7L Misfire VIN: WPOCA29815
P0303: misfire cyl 3. Hi, This car came in with a rough idle. Codes were for a misfire. Checked plugs, they wre worn so they were replaced. Then the coils were switched. Also the injectors were switched from that cylinder, #3. Misfire stayed at that cylinder. The engine does have a...
June 19, 2009
2003 Porsche Boxster Roadster 2.7L Misfire VIN: WPOCA29815
P0303: misfire cyl 3. Hi, This car came in with a rough idle. Codes were for a misfire. Checked plugs, they wre worn so they were replaced. Then the coils were switched. Also the injectors were switched from that cylinder, #3. Misfire stayed at that cylinder. The engine does have a...
June 22, 2009
2004 Volkswagen Passat GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVWPD63B14
P0303: cyl 3 misfire. Vehicle Came in With Rough Idle. Runs Fine while Driving. First Thing I Saw was the oil filter was pouring oil out of it. Turned out to be the wrong filter. Second Checked All Coils and all were firing and all are updated. Installed New NGK Laser Plugs. Remove...
June 23, 2009
2004 Volkswagen Passat GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVWPD63B14
P0303: cyl 3 misfire. Vehicle Came in With Rough Idle. Runs Fine while Driving. First Thing I Saw was the oil filter was pouring oil out of it. Turned out to be the wrong filter. Second Checked All Coils and all were firing and all are updated. Installed New NGK Laser Plugs. Remove...
June 26, 2009
2002 Kia Sedona EX 3.5L Hesitation, Misfire, MIL Lamp on VIN: KNDUP13192
P0303: Cylinder 3 Misfire Detected. thanks for all the help in advance, this kia has a slight miss on take off then goes like a bandit down the road.I have done all I could think off the only major thing I found wrong was the tone wheel on the crank gear had spun about a 1/4 inch from where it n...
June 29, 2009
2001 Nissan Sentra GXE 1.8L Stall VIN: 3N1CB51D31
P0303: Cylinder 3 Misfire Detected. How ya'll are?? Got this here Sentra giving me fits. Comes in as no start. Retrieved codes, was slightly overwhelmed.Cranked, started, died. Grabbed my trusty Vantage and off to pin-out land I went. Verified all powers/grounds at ECM.It does start and run.Watc...
June 29, 2009
2005 Audi A4 1.8L Misfire VIN: WAULC68EX5
P0303: cyl 3 misfire. Vehicle will misfire on light to hard accell, also on decell. observed fuel trims and long term stays at zerro, short term, aprox 5.5%. pinging can also be heard on hard accell, does not coincide with the misfires which occur across all 4 cylinders. can not fi...
June 30, 2009
2000 Honda CR-V SE 2.0L Misfire, MIL Lamp on VIN: JHLRD1874Y
P0303: Cylinder 3 Misfire Detected. Greetings! Hoping someone has been down this road before. Vehicle has a miss at idle - I believe it's a lean miss. Spark plugs replaced about 4 months ago and they look brand new - not a speck of carbon on them. Fuel pressure is good - both static and running....
June 30, 2009
2004 Cadillac SRX 3.6L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GYEE63754
P0303: Cylinder 3 Misfire Detected. Hello good technicians out there. Here is the story. This Cadillac came in with a MIL on. We scanned the computer and found a P0420 code (Catalyst efficiency) as well as multiple cylinder missfires. Because of the millage we went ahead and replaced the spark p...
June 03, 2009
2007 Ford Focus SES 2.0L Poor Idle Quality, Misfire VIN: 1FAFP34N17
P0303: cylinder 3 misfire. ... engine light is on because of the misfire. if you clear the codes and run the car in park or neutral around 1500 to 1800 the engine misses like crazy and codes po300 p0301 p0302 p0303 p0304 all come back at the same time. i...
June 04, 2009
2002 Kia Sedona EX 3.5L Hesitation, Misfire, MIL Lamp on VIN: KNDUP13192
P0303: Cylinder 3 Misfire Detected. thanks for all the help in advance, this kia has a slight miss on take off then goes like a bandit down the road.I have done all I could think off the only major thing I found wrong was the tone wheel on the crank gear had spun about a 1/4 inch from where it n...
June 09, 2009
1997 Lincoln Town Car 4.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LFMS33K33
P0303: misfire3. Im hoping some had this problem and can help me.Am i overlooking something Is there something else that controls the pulse because i stumped on this one.Any help would greatly appreciated.Im counting on you guys PLEASE!
June 09, 2009
2002 Toyota Highlander 3.0L Misfire VIN: JTEHF21A52
P0303: Cylinder 3 Misfire Detected. Customer concern was hesitation and check engine light. Found a consistent code P0171 for lean exhaust and no sign of symptom and fuel trim appeared normal under ALL conditions. Days later codes for all three bank#1 cylnders (1,3,& 5) showed misfire code...
June 09, 2009
2004 Kia Sorento EX 3.5L Cuts out, MIL Lamp on VIN: KNDJC73314
P0303: Cylinder 3 Misfire Detected. ihave this kia that is setting misfire codes and under a load it is popping through the intake.sometimes the vehicle runs good,but majority of the time it runs bad. the right bank is leaning out and the converter is getting red hot.bank 1 was 746 degrees and b...
June 11, 2009
2002 Subaru Impreza WRX 2.0L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: JF1GD29632
P0303: Cylinder 3 Misfire Detected. subaru tech, please help on this one. car came in with system too lean and misfire code. LTFT 14.8% STFT 17.2% road test vehicle, car loss power, turbo doesn't kick in like the way it suppose [...] be.fuel trim keep going up after we erease dtc. install smoke ...
June 12, 2009
2003 Porsche Boxster Roadster 2.7L Misfire VIN: WPOCA29815
P0303: misfire cyl 3. Hi, This car came in with a rough idle. Codes were for a misfire. Checked plugs, they wre worn so they were replaced. Then the coils were switched. Also the injectors were switched from that cylinder, #3. Misfire stayed at that cylinder. The engine does have a...
June 19, 2009
2003 Porsche Boxster Roadster 2.7L Misfire VIN: WPOCA29815
P0303: misfire cyl 3. Hi, This car came in with a rough idle. Codes were for a misfire. Checked plugs, they wre worn so they were replaced. Then the coils were switched. Also the injectors were switched from that cylinder, #3. Misfire stayed at that cylinder. The engine does have a...
June 22, 2009
2004 Volkswagen Passat GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVWPD63B14
P0303: cyl 3 misfire. Vehicle Came in With Rough Idle. Runs Fine while Driving. First Thing I Saw was the oil filter was pouring oil out of it. Turned out to be the wrong filter. Second Checked All Coils and all were firing and all are updated. Installed New NGK Laser Plugs. Remove...
June 23, 2009
2004 Volkswagen Passat GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVWPD63B14
P0303: cyl 3 misfire. Vehicle Came in With Rough Idle. Runs Fine while Driving. First Thing I Saw was the oil filter was pouring oil out of it. Turned out to be the wrong filter. Second Checked All Coils and all were firing and all are updated. Installed New NGK Laser Plugs. Remove...
June 26, 2009
2002 Kia Sedona EX 3.5L Hesitation, Misfire, MIL Lamp on VIN: KNDUP13192
P0303: Cylinder 3 Misfire Detected. thanks for all the help in advance, this kia has a slight miss on take off then goes like a bandit down the road.I have done all I could think off the only major thing I found wrong was the tone wheel on the crank gear had spun about a 1/4 inch from where it n...
June 29, 2009
2001 Nissan Sentra GXE 1.8L Stall VIN: 3N1CB51D31
P0303: Cylinder 3 Misfire Detected. How ya'll are?? Got this here Sentra giving me fits. Comes in as no start. Retrieved codes, was slightly overwhelmed.Cranked, started, died. Grabbed my trusty Vantage and off to pin-out land I went. Verified all powers/grounds at ECM.It does start and run.Watc...
June 29, 2009
2005 Audi A4 1.8L Misfire VIN: WAULC68EX5
P0303: cyl 3 misfire. Vehicle will misfire on light to hard accell, also on decell. observed fuel trims and long term stays at zerro, short term, aprox 5.5%. pinging can also be heard on hard accell, does not coincide with the misfires which occur across all 4 cylinders. can not fi...
June 30, 2009
2000 Honda CR-V SE 2.0L Misfire, MIL Lamp on VIN: JHLRD1874Y
P0303: Cylinder 3 Misfire Detected. Greetings! Hoping someone has been down this road before. Vehicle has a miss at idle - I believe it's a lean miss. Spark plugs replaced about 4 months ago and they look brand new - not a speck of carbon on them. Fuel pressure is good - both static and running....
June 30, 2009