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P0304 Diagnostic Trouble Code Discussion for May 2006

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1996 Volkswagen Passat GLX 2.8L MIL Lamp on VIN: WVWEE83A7T
P0304: misfire cylinder 4. ... the check engine light on. pulled codes with the state inspection machine. had code p0304 in system. showed codes p0300 and p0304 in the "pending" screen. cleared codes and roadtested 16 miles. no misfire felt and the cel did not come back on. plea...
May 01, 2006
1996 Volkswagen Passat GLX 2.8L MIL Lamp on VIN: WVWEE83A7T
P0304: misfire cylinder 4. ... the check engine light on. pulled codes with the state inspection machine. had code p0304 in system. showed codes p0300 and p0304 in the "pending" screen. cleared codes and roadtested 16 miles. no misfire felt and the cel did not come back on. plea...
May 03, 2006
1997 Ford F-150 4.2L Misfire, MIL Lamp on VIN: IFTDFI720V
P0304: cylinder 4 misfire. Truck came in misfiring badly.Checked ignition wiring routing,its ok.Spark is good and the injectors are all firing. Then checked compression-150 on all.I then plugged off the egr by putting a plate in between egr and intake.No difference.Dont know where to go...
May 05, 2006
1999 Chevrolet Tahoe LS 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GNEK13R7X
P0304: Cylinder 4 Misfire Detected. Engine misfires at idle does not misfire [...] rpm. fuel pressure is below spec. , but pump was previously replaced. Compression checks out ok at all cyls. Removed the egr cleaned the pintle and passage. The #3 cyl acted up during an injector balance test. But...
May 06, 2006
1998 Infiniti Q45 4.1L Cuts out, Misfire VIN: JNKBY31A7W
P0304: Cylinder 4 Misfire Detected. ... driving me crazy, the problem all started a few days after a major service, plugs, air filter, fuel filter, pcv valve and fluids, plugs were OE. At an idle the engine will intermittently skip/missfire in gear and sometimes stumble on take off, rest of driv...
May 10, 2006
1999 Chevrolet Venture 3.4L No Start, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GHDX03E6X
P0304: cly 4 misfire. cam in with coolant leak and runing rough diag. 4 and 5 coil tower bad replace plugs wire and 2 coils still had misfire on cly 4 after running apox 30 min would not miss when cold suspected intake gasket leaking vacume replace and now vehical will not start ha...
May 11, 2006
1998 Volkswagen Beetle 2.0L Hesitation VIN: 3VWBB61CWM
P0304: Misfire - Bad spark plug wires. This seemed like an easy one. Replaced plugs and wires, Air and fuel filter. On test drive, it at first ran quite well, then started to hesitate very badly, like it was starving for fuel. Checked fuel pressure, at idle it was 37 Psi, and climbs to 45 at open t...
May 11, 2006
1999 Chevrolet Tahoe LS 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GNEK13R7X
P0304: Cylinder 4 Misfire Detected. Engine misfires at idle does not misfire [...] rpm. fuel pressure is below spec. , but pump was previously replaced. Compression checks out ok at all cyls. Removed the egr cleaned the pintle and passage. The #3 cyl acted up during an injector balance test. But...
May 21, 2006
1997 BMW 318ti 1.9L Poor Idle Quality, Misfire VIN: WBACG7322V
P0304: Cylinder 4 misfire. Hello Friends, I have this BMW here that was rejected last week for readiness status from The ILL EPA emissions test. The MIL is not commanded on yet it has 6 codes. My #1 problem is that P1585 is not listed with ALLDATA. I have resquest info from them and I...
May 30, 2006
2003 Audi A6 3.0L MIL Lamp on VIN: WAUVT64B93
P0304: misfire. ... Scanned codes and found p0304,p0305 and p0306 misfires, all on same bank. Checked connections and checked for vacumm leaks none found,(never removed vacumm lines during original repair.) Swappe...
May 31, 2006
2001 Mercedes-Benz C240 2.6L Misfire VIN: WDBRF61J21
P0304: cyl 4 missfire. ... P0304, P0305, P0306, P0170 and P0173. After checking the plugs, I found it had the wrong plugs installed and they were in bad shape. I replaced the plugs and road tested vehicle for about 35 miles. The mil came back on, on...
May 31, 2006