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P0304 Diagnostic Trouble Code Discussion for November 2005

Cylinder 4 Misfire Detected

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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1998 Volkswagen Passat GLS 1.8L No Start, Poor Idle Quality VIN: WVWNA63B1E
P0304: missfire 4. car arrived with complainnt of not starting after tank filled.Cel was on (no mention from cust)After fixing large vacum leak under intake I was convinced that the lean code and missfire were fixed I was able to confirm that purge valve was functioning at this ...
November 02, 2005
2002 Acura MDX Touring 3.5L Misfire, MIL Lamp on VIN: 2HNYD186X2
P0304: Cylinder 4 Misfire Detected. Good evening, The customer complaint is intermittant misfire, mostly in the AM, pointing downhiil in his steep driveway. When it happens, the MIL and VTM lights come on, and multiple codes set.(see code descriptions) We have not been able to experience this ye...
November 03, 2005
1997 Subaru Legacy Outback 2.5L Misfire VIN: 4S3BG6856V
P0304: Cylinder 4 Misfire Detected. This monster keeps coming back with missfire codes. At first it was #3-4, I disregaurded because of both head gaskets leaking. A week later the car returned with #1-2 missfire, customer says car runs smoother than ever, no fault found. Installed a test coil, 2...
November 03, 2005
1996 Subaru Legacy GT 2.5L Misfire, MIL Lamp on VIN: 4SEBG6851T
P0304: Cylinder 4 Misfire Detected. ... a P0304 misfire code. PO400 came first (we checked it when the light first came on and it was only code. We cleared and when they came back it had both stored. Found several posts indicating problems with the backpressure transducer and the filter on the p...
November 18, 2005
2000 Ford F-150 5.4L Excessive Emissions, Misfire, Poor Fuel Economy VIN: 1FTRX173YN
P0304: 4 misfire. vehicle was towed to shop, no start. have 40psi fuel pressure, does not drop except over long period of time. have spark and also injector pulse. removed plugs, were completely saturated with fuel. replaced plugs, vehicle did start but running excessively rich...
November 25, 2005