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P0304 Diagnostic Trouble Code Discussion for March 2010

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2001 Porsche 911 Carrera 4 3.4L Poor Idle Quality, Stall VIN: WPOAA29971
This is a car that was brought in originally for a steering calibration due to rack not being properly aligned after fuel tank removal due to rodent damage. I now have a cold start running problem that is eating me alive and Identifix as well.This car will usu...
March 01, 2010
1997 Ford F-250 7.3L No Start VIN: 3FTH25F6VM
P0304: cam position sensor intermintent. dont have a guage but oil pressure seems good fuel pressure looks good maxes out at 50psi at guage port. scan test shows v-pwr at 12.3 volts pulse witdh around 3.0 cranking rpm 294 or better but ipr pressure at 2400 psi runs on either what am i missing talked ...
March 05, 2010
2002 Other European vanquish 5935CC Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: UNKOWNVINN
P0304: miss 4. ok alldata has zero info on this car and iatn tech help has very limited info also. this car belongs to very good customer with a fleet of trucks, plus he is a shop friend. so i dont want to send him back to the dealer on this. this car has misfires on multipl...
March 05, 2010
1997 Ford F-250 7.3L No Start VIN: 3FTH25F6VM
P0304: cam position sensor intermintent. dont have a guage but oil pressure seems good fuel pressure looks good maxes out at 50psi at guage port. scan test shows v-pwr at 12.3 volts pulse witdh around 3.0 cranking rpm 294 or better but ipr pressure at 2400 psi runs on either what am i missing talked ...
March 07, 2010
2005 Volkswagen Passat GL 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVWAD63B55
P0304: misfire cyl 4. I have this Passat come in idling real bad and check engine light blinking. Pulled codes and initially found misfire codes on all cyl's and lean code bank 1. Customer previously had been at VW dealer and they diagnosed as 4 bad coils. They installed new coils ...
March 10, 2010
2005 Volkswagen Jetta 2.5 2.5L Hesitation VIN: 3VWSF71K85
P0304: Misfiring cyl.2. Hi Fellows, After replacing 2 sensors and the problem is still occurs. We think there's something serious here. So we checked the database and found the same issue with same codes and symptom. Whoever ran to this can tell us ,what parts are involve and labor t...
March 10, 2010
1999 Kia Sportage 2.0L Misfire, MIL Lamp on VIN: KNDJB7237X
P0304: Cylinder 4 Misfire Detected. Good evening all This car came in missing terrible,hooked up modis came up with p300,p301,p303,p304 codes.I replaced the 2 plug wires,the spark plugs and the coil pack on no. 4 cylinder,put it all back together went for test drive[5 miles].Check engine light b...
March 14, 2010
1998 Ford Ranger XL 2.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTYR14CXW
P0304: cylinder 4 misfire. really strange problem here. engine runs ok when first started. after revving up engine, it starts to misfire and run really rough. customer had it at dealer they told him it was bad lifters and fuel injectors. he replaced all injectors and lifters, still runs...
March 15, 2010
1998 Ford Ranger XL 2.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTYR14CXW
P0304: cylinder 4 misfire. really strange problem here. engine runs ok when first started. after revving up engine, it starts to misfire and run really rough. customer had it at dealer they told him it was bad lifters and fuel injectors. he replaced all injectors and lifters, still runs...
March 16, 2010
1998 Lexus LS400 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: JTHBH28FXW
P0304: Cylinder 4 Misfire Detected. Need Toyota/Lexus gurus help. This one has stumped me. This vehicle came in previously with an alternator dead. The lady said the mil was on before we changed the alternator but the battery was dead and checked out with a dead cell. The next day she came back ...
March 18, 2010
2002 Volkswagen Passat GLS 4 Motion 2.8L noise VIN: WVWYH63B22
P0304: misfire cyl 4. Hi All, Last month, the owner brought this VW in after a few weeks of missed appointments. His complaint was no power and the check engine light was on and or flashing. It was sort of a no-brainer. misfire codes for most of the cylinders, the passenger side ca...
March 18, 2010
2001 Porsche Boxster Roadster 2.7L No Start VIN: WPOCA29811
hello every one i have a 2001 porsche boxter that has an intermittent no start after sitting for awhile when the car cranks it sounds like it has no compression at first and it sounds almost like a timing chain rattle then after it sits for a few minutes then ...
March 29, 2010
2002 Land Rover Freelander SE 2.5L No Start, Poor Idle Quality, Stall VIN: SALNM22222
P0304: cylinder 4 misfire. Hi everybody. I am begging for yuor help in this one and thanks very much for yuor help. I was called from another shop to give a hand in this problem. The engine overheated so much, that it melted most of things made out of plastic on top of the engine. Cylin...
March 30, 2010