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P0304 Diagnostic Trouble Code Discussion for June 2012

Cylinder 4 Misfire Detected

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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2000 BMW 323i 2.5L Misfire VIN: WBAAR3341Y
P0304: Misfire Cylinder 4. This BMW is driving us crazy. It has a misfire on cylinder 3 that is intermittent. It seems to occur more when the weather and the car are hot. The customer says that it usually requires a longer drive to get it to act up. 20 to 30 miles seems to do the trick....
June 06, 2012
2007 Ford E-350 Super Duty XLT 5.4L Cuts out, Stall, Misfire, MIL Lamp on VIN: 1FBNE31L97
P0304: Fault Cylinder 4 Misfire Detected. Hey Fellas, Rick at Martins her in Forney Texas. Good Day to all.Ive searched archives and every thing else. this is the first time ive been able to really make much of a contribution to this site. After reading all the posts most said ck. harness around egr v...
June 08, 2012
2006 Subaru Impreza WRX 2.5L Poor Idle Quality, Cuts out, MIL Lamp on VIN: JF1GG79646
P0304: Cylinder 4 Misfire Detected. this car constant misfire on #4 cyl swapped inj.#2and #4 and coils all new plugs smoke test still missfiring on#4 running rough on #4 still any ideas?
June 18, 2012
2001 Toyota Corolla CE 1.8L Misfire, MIL Lamp on VIN: 2T1BR12E11
P0304: Cylinder 4 Misfire Detected. ... problem with this Corolla w/ the 1.8lt VVTi engine. I replaced the timing chain w/ a complete service kit from NAPA. Once the job was done the car ran beautiful. Customer picked and called shortly after saying that the MIL had come on. I asked him to retur...
June 27, 2012
2010 Subaru Forester X 2.5L Stall, Misfire VIN: 1F2SH6CCXA
P0304: . Customer has intermittent rough running/misfire. The car has acted up once for a short time for us. seemed to be running on 2 or 3 cyls.. No other code than the po303 and 304. Has anyone else seen this problem? I am thinking the ignition coil because it fires ...
June 28, 2012