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P0304 Diagnostic Trouble Code Discussion for August 2004

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1999 Volkswagen Jetta GLS 2.0L Misfire, MIL Lamp on, Starts Runs, & Dies VIN: 3VWSA29M3X
P0304: Cyl 4 Misfire. Hey Gang, This car came to me on the hook, The engine will start run 2 or 3 seconds then dies. I thought simple, Change out the fuel filter that the car was born with. No luck. On another note, these late modle VW's with that fuse pannel on top of the batte...
August 03, 2004
1999 Dodge Durango SLT 5.9L Misfire, MIL Lamp on VIN: 1B4HS28Z5X
P0304: Cylinder 4 Misfire Detected. vehicle came in with code po304 and running rough , had bad #4 plug wire - replaced plugs and wires cleared codes vehicle was gone for two days and back with same code but runs fine - customer states runs a little rough mainly first thing in the morning. with ...
August 06, 2004
1999 GMC K1500 Suburban SLE 5.7L No Start VIN: 1GKFK16R4X
P0304: Cylinder 4 Misfire Detected. Hi there. I have this no start condition. It has spark fuel pressure is 38 psi and it will start with starting fluid.It just wont stay running. Check for injector pulse and can see them working but it still wont start. I have noticed that fuel preasurre bleeds...
August 10, 2004
1999 GMC K1500 Suburban SLE 5.7L No Start VIN: 1GKFK16R4X
P0304: Cylinder 4 Misfire Detected. Hi there. I have this no start condition. It has spark fuel pressure is 38 psi and it will start with starting fluid.It just wont stay running. Check for injector pulse and can see them working but it still wont start. I have noticed that fuel preasurre bleeds...
August 11, 2004
1997 Nissan Altima GLE 2.4L Misfire, MIL Lamp on VIN: 1N4BU31D7V
P0304: Cylinder 4 Misfire Detected. ... and p0304.change all the vaccum hoses no diffrance. if you look at o2 its always lean at idle but as you accalrate it starts changing normal .have a miss too may injector.if i change the injector this can take care of p0171 or i have to change MAF too.plea...
August 12, 2004
1995 Dodge Neon 2.0L Misfire VIN: 1CDE 496FG
P0304: 4 cyl misfire. Hi fellow techs. This Neon has a misfire code for #1 cylinder. The problem occures mostly after a hard right turn esp if your not coming to a total stop.It will miss 1 to 4 times max and then clear. The problem has also happened when accel hard in reverse and...
August 17, 2004
1997 Kia Sportage 2.0L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: KNDJB7236V
P0304: Cylinder 4 Misfire Detected. Number 4 spark plug had a carbon track, replaed plugs, coils and wires with Kia parts. That fixed PO304 code. Egr valve would not hold vacuum, replaced it with a Kia part. Then I had a rough idle, EGR driver in PCM is not pulling control circuit down so EGR v...
August 19, 2004
1997 Toyota Tacoma DLX 3.4L Misfire, MIL Lamp on VIN: 4TAVN52N7V
P0304: Cylinder 4 Misfire Detected. this truck misfires under load only. took forever to set code. only found cyl on misfire monitor with mastertech. i've switched coils & plugs and replaced injector for # 4 cleaned air flow sensor pulled valve cover looked for any cam or lifter poblem check...
August 24, 2004
1999 Chevrolet C1500 Suburban 5.7L Misfire, MIL Lamp on VIN: 3GNFK16ROX
P0304: Cylinder 4 Misfire Detected. could a popet noz. do this?
August 25, 2004
1996 Subaru Legacy L 2.2L Misfire VIN: 4S3BK4353T
P0304: Cylinder 4 Misfire Detected. Under load. Going up a steep hill. Engine will start to buck. Check engine light will flash and then set codes for misfires. It seems to be vey consistent. I have three Subaru's with the same problem. Anybody know the answer to the problem?? Thanks EJG
August 30, 2004
1999 Volkswagen Jetta GLS 2.0L Misfire, MIL Lamp on, Starts Runs, & Dies VIN: 3VWSA29M3X
P0304: Cyl 4 Misfire. Hey Gang, This car came to me on the hook, The engine will start run 2 or 3 seconds then dies. I thought simple, Change out the fuel filter that the car was born with. No luck. On another note, these late modle VW's with that fuse pannel on top of the batte...
August 03, 2004
1999 Dodge Durango SLT 5.9L Misfire, MIL Lamp on VIN: 1B4HS28Z5X
P0304: Cylinder 4 Misfire Detected. vehicle came in with code po304 and running rough , had bad #4 plug wire - replaced plugs and wires cleared codes vehicle was gone for two days and back with same code but runs fine - customer states runs a little rough mainly first thing in the morning. with ...
August 06, 2004
1999 GMC K1500 Suburban SLE 5.7L No Start VIN: 1GKFK16R4X
P0304: Cylinder 4 Misfire Detected. Hi there. I have this no start condition. It has spark fuel pressure is 38 psi and it will start with starting fluid.It just wont stay running. Check for injector pulse and can see them working but it still wont start. I have noticed that fuel preasurre bleeds...
August 10, 2004
1999 GMC K1500 Suburban SLE 5.7L No Start VIN: 1GKFK16R4X
P0304: Cylinder 4 Misfire Detected. Hi there. I have this no start condition. It has spark fuel pressure is 38 psi and it will start with starting fluid.It just wont stay running. Check for injector pulse and can see them working but it still wont start. I have noticed that fuel preasurre bleeds...
August 11, 2004
1997 Nissan Altima GLE 2.4L Misfire, MIL Lamp on VIN: 1N4BU31D7V
P0304: Cylinder 4 Misfire Detected. ... and p0304.change all the vaccum hoses no diffrance. if you look at o2 its always lean at idle but as you accalrate it starts changing normal .have a miss too may injector.if i change the injector this can take care of p0171 or i have to change MAF too.plea...
August 12, 2004
1995 Dodge Neon 2.0L Misfire VIN: 1CDE 496FG
P0304: 4 cyl misfire. Hi fellow techs. This Neon has a misfire code for #1 cylinder. The problem occures mostly after a hard right turn esp if your not coming to a total stop.It will miss 1 to 4 times max and then clear. The problem has also happened when accel hard in reverse and...
August 17, 2004
1997 Kia Sportage 2.0L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: KNDJB7236V
P0304: Cylinder 4 Misfire Detected. Number 4 spark plug had a carbon track, replaed plugs, coils and wires with Kia parts. That fixed PO304 code. Egr valve would not hold vacuum, replaced it with a Kia part. Then I had a rough idle, EGR driver in PCM is not pulling control circuit down so EGR v...
August 19, 2004
1997 Toyota Tacoma DLX 3.4L Misfire, MIL Lamp on VIN: 4TAVN52N7V
P0304: Cylinder 4 Misfire Detected. this truck misfires under load only. took forever to set code. only found cyl on misfire monitor with mastertech. i've switched coils & plugs and replaced injector for # 4 cleaned air flow sensor pulled valve cover looked for any cam or lifter poblem check...
August 24, 2004
1999 Chevrolet C1500 Suburban 5.7L Misfire, MIL Lamp on VIN: 3GNFK16ROX
P0304: Cylinder 4 Misfire Detected. could a popet noz. do this?
August 25, 2004
1996 Subaru Legacy L 2.2L Misfire VIN: 4S3BK4353T
P0304: Cylinder 4 Misfire Detected. Under load. Going up a steep hill. Engine will start to buck. Check engine light will flash and then set codes for misfires. It seems to be vey consistent. I have three Subaru's with the same problem. Anybody know the answer to the problem?? Thanks EJG
August 30, 2004