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P0304 Diagnostic Trouble Code Discussion for May 2010

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2006 Volkswagen Jetta 2.0T 2.0L MIL Lamp on, Overboost VIN: 3VWMJ71K56
P0304: Cyl 4 misfire. alldata info very vague on this code,info supplied just lumps into 4 different directions with all turbo sensors.this sensor is held in with 2 phillips screws in front of engine into plastic housing that is part of intercooler intake.can anyone elaborate on th...
May 03, 2010
1999 Pontiac Grand Prix GTP 3.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G2WR5215X
P0304: misfire cyl 4. Good evening all! I believe we have a problem with a sticking exhaust valve in this car and before we go further I would like to see if any one else has seen this. The background: car was brought into us to replace a leaking rear valve cover. This was done a...
May 05, 2010
2002 Volkswagen Passat GLX 2.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: WVWRH63B42
Hello all,i have a car that i need help with.The car came in after someone had just installed a used engine.The car barely runs and has cam sensor code for bank 2 (i tried another sensor from another car no change).The car will start and run very poorly,the id...
May 07, 2010
1999 Ford F-150 4.6L Misfire VIN: 2FTRF18W7X
P0304: Misfire cyl 4. Customer recently purchased this vehicle and was told there was a weak coil. Replaced coil idles fine but will misfire when going uphill, if accelerator is increased misfire goes away. Checked spark plugs for 4 & 7 and found them to be fine and barely used...
May 11, 2010
2005 Volkswagen Beetle GLS 1.8L Misfire, MIL Lamp on VIN: 3VWCD31Y05
P0304: Intermittent misfire. Vehicle came in with MIL lamp on. Found misfire codes stored in computer. Knowing the coil packs had been replaced with the newly designed VW coil packs, and with no performance issues found in any condition, we replaced the 4 plugs due to visable wear and cle...
May 11, 2010
1999 Ford F-150 4.6L Misfire VIN: 2FTRF18W7X
P0304: Misfire cyl 4. Customer recently purchased this vehicle and was told there was a weak coil. Replaced coil idles fine but will misfire when going uphill, if accelerator is increased misfire goes away. Checked spark plugs for 4 & 7 and found them to be fine and barely used...
May 12, 2010
2001 Volkswagen Beetle GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWED21C01
P0304: Misfire 1234 cylinder. First time post, here we go... This Volkswagen Beetle will run great off idle, never a light or concern. Idle is when the fun begins. After bringing engine to operating temp or after a hot soak, you pull up to a stop and the idle will pick up from 840 rpm to 1...
May 12, 2010
2003 Subaru Outback 2.5L MIL Lamp on VIN: 4S3BH67583
P0304: Cylinder 4 Misfire Detected. good morning subaru techs, I have a good one this morning. this vehicle came to me with a "runs really bad" complaint and engine light on. I couldn't even make it out of our lot before I turned around. scanned and found codes listed but it idles perfec...
May 14, 2010
1999 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 621H572888
P0304: Cylinder 4 Misfire Detected. ... cylinders except for number 2. FF is stored for P0303 @753 RPM, ECT 203F, Closed Loop, Load 27.1% STFT 6.3% and LTFT 5.5%, TP 9.8% Misfire is constant @ idle and cruise, higher speed it'll clear up a little but still not...
May 20, 2010
1999 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 621H572888
P0304: Cylinder 4 Misfire Detected. ... cylinders except for number 2. FF is stored for P0303 @753 RPM, ECT 203F, Closed Loop, Load 27.1% STFT 6.3% and LTFT 5.5%, TP 9.8% Misfire is constant @ idle and cruise, higher speed it'll clear up a little but still not...
May 21, 2010
2004 Lincoln LS 3.0L Misfire VIN: 1LNHM86S34
P0304: cylinder 4 missfire. We have this lincoln that will start to missfire on number 4 cylinder. After pulling coil found water in spark plug tube where coil sits, blow out water and runs fine. Approx a month later car is back with misfire and water in plug tube, also noticed water in ...
May 24, 2010
2002 Jaguar X-Type 2.5L Misfire, MIL Lamp on VIN: SAJEA53D62
P0304: cyl 4 misfire. This vehicle came in with a gearbox fault and was not shifting properly, we replaced a j gate shifter and resolved shifting problems, however the vehicle showed misfire codes and would not rev over aprox. 3000 rpm. replaced all plugs and coils. vehicle seems t...
May 26, 2010
2001 Kia Sportage 2.0L Hesitation, Misfire, MIL Lamp on VIN: KNDJA72301
P0304: Cylinder 4 Misfire Detected. This vehicle came to us from another shop. Customer said it was running rough when they took it in to the other shop. They replaced the spark plugs and cleared misfire codes. Customer said it was ok for a couple of days. Then they replaced all 4 coils and it w...
May 26, 2010
2004 Subaru Outback 2.5L Misfire, MIL Lamp on VIN: 4S3BH67554
P0304: Cylinder 4 Misfire Detected. Out of town customer states all was well when car was parked for the evening. Next morning the car wouldn't crank. Tow svc. replaced faulty battery & asked if the car had been running so rough. Cust. says no & hits the road. Says car ran poorly & C...
May 30, 2010
2004 Subaru Outback 2.5L Misfire, MIL Lamp on VIN: 4S3BH67554
P0304: Cylinder 4 Misfire Detected. Out of town customer states all was well when car was parked for the evening. Next morning the car wouldn't crank. Tow svc. replaced faulty battery & asked if the car had been running so rough. Cust. says no & hits the road. Says car ran poorly & C...
May 31, 2010
2006 Volkswagen Jetta 2.0T 2.0L MIL Lamp on, Overboost VIN: 3VWMJ71K56
P0304: Cyl 4 misfire. alldata info very vague on this code,info supplied just lumps into 4 different directions with all turbo sensors.this sensor is held in with 2 phillips screws in front of engine into plastic housing that is part of intercooler intake.can anyone elaborate on th...
May 03, 2010
1999 Pontiac Grand Prix GTP 3.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G2WR5215X
P0304: misfire cyl 4. Good evening all! I believe we have a problem with a sticking exhaust valve in this car and before we go further I would like to see if any one else has seen this. The background: car was brought into us to replace a leaking rear valve cover. This was done a...
May 05, 2010
2002 Volkswagen Passat GLX 2.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: WVWRH63B42
Hello all,i have a car that i need help with.The car came in after someone had just installed a used engine.The car barely runs and has cam sensor code for bank 2 (i tried another sensor from another car no change).The car will start and run very poorly,the id...
May 07, 2010
1999 Ford F-150 4.6L Misfire VIN: 2FTRF18W7X
P0304: Misfire cyl 4. Customer recently purchased this vehicle and was told there was a weak coil. Replaced coil idles fine but will misfire when going uphill, if accelerator is increased misfire goes away. Checked spark plugs for 4 & 7 and found them to be fine and barely used...
May 11, 2010
2005 Volkswagen Beetle GLS 1.8L Misfire, MIL Lamp on VIN: 3VWCD31Y05
P0304: Intermittent misfire. Vehicle came in with MIL lamp on. Found misfire codes stored in computer. Knowing the coil packs had been replaced with the newly designed VW coil packs, and with no performance issues found in any condition, we replaced the 4 plugs due to visable wear and cle...
May 11, 2010
1999 Ford F-150 4.6L Misfire VIN: 2FTRF18W7X
P0304: Misfire cyl 4. Customer recently purchased this vehicle and was told there was a weak coil. Replaced coil idles fine but will misfire when going uphill, if accelerator is increased misfire goes away. Checked spark plugs for 4 & 7 and found them to be fine and barely used...
May 12, 2010
2001 Volkswagen Beetle GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWED21C01
P0304: Misfire 1234 cylinder. First time post, here we go... This Volkswagen Beetle will run great off idle, never a light or concern. Idle is when the fun begins. After bringing engine to operating temp or after a hot soak, you pull up to a stop and the idle will pick up from 840 rpm to 1...
May 12, 2010
2003 Subaru Outback 2.5L MIL Lamp on VIN: 4S3BH67583
P0304: Cylinder 4 Misfire Detected. good morning subaru techs, I have a good one this morning. this vehicle came to me with a "runs really bad" complaint and engine light on. I couldn't even make it out of our lot before I turned around. scanned and found codes listed but it idles perfec...
May 14, 2010
1999 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 621H572888
P0304: Cylinder 4 Misfire Detected. ... cylinders except for number 2. FF is stored for P0303 @753 RPM, ECT 203F, Closed Loop, Load 27.1% STFT 6.3% and LTFT 5.5%, TP 9.8% Misfire is constant @ idle and cruise, higher speed it'll clear up a little but still not...
May 20, 2010
1999 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 621H572888
P0304: Cylinder 4 Misfire Detected. ... cylinders except for number 2. FF is stored for P0303 @753 RPM, ECT 203F, Closed Loop, Load 27.1% STFT 6.3% and LTFT 5.5%, TP 9.8% Misfire is constant @ idle and cruise, higher speed it'll clear up a little but still not...
May 21, 2010
2004 Lincoln LS 3.0L Misfire VIN: 1LNHM86S34
P0304: cylinder 4 missfire. We have this lincoln that will start to missfire on number 4 cylinder. After pulling coil found water in spark plug tube where coil sits, blow out water and runs fine. Approx a month later car is back with misfire and water in plug tube, also noticed water in ...
May 24, 2010
2002 Jaguar X-Type 2.5L Misfire, MIL Lamp on VIN: SAJEA53D62
P0304: cyl 4 misfire. This vehicle came in with a gearbox fault and was not shifting properly, we replaced a j gate shifter and resolved shifting problems, however the vehicle showed misfire codes and would not rev over aprox. 3000 rpm. replaced all plugs and coils. vehicle seems t...
May 26, 2010
2001 Kia Sportage 2.0L Hesitation, Misfire, MIL Lamp on VIN: KNDJA72301
P0304: Cylinder 4 Misfire Detected. This vehicle came to us from another shop. Customer said it was running rough when they took it in to the other shop. They replaced the spark plugs and cleared misfire codes. Customer said it was ok for a couple of days. Then they replaced all 4 coils and it w...
May 26, 2010
2004 Subaru Outback 2.5L Misfire, MIL Lamp on VIN: 4S3BH67554
P0304: Cylinder 4 Misfire Detected. Out of town customer states all was well when car was parked for the evening. Next morning the car wouldn't crank. Tow svc. replaced faulty battery & asked if the car had been running so rough. Cust. says no & hits the road. Says car ran poorly & C...
May 30, 2010
2004 Subaru Outback 2.5L Misfire, MIL Lamp on VIN: 4S3BH67554
P0304: Cylinder 4 Misfire Detected. Out of town customer states all was well when car was parked for the evening. Next morning the car wouldn't crank. Tow svc. replaced faulty battery & asked if the car had been running so rough. Cust. says no & hits the road. Says car ran poorly & C...
May 31, 2010