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P0304 Diagnostic Trouble Code Discussion for May 2008

Cylinder 4 Misfire Detected

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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1998 Oldsmobile Intrigue GL 3.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G3WS52K4W
P0304: 4. hey all. my son has a 98 intrigue 3.8. at idle the misfire counter starts rapidly counting. at about 1500 rpms the misfires stop. runs great on the highway. not good at idle. the engine was replaced about 3000 miles ago with a 50k mile used part. ran great unt...
May 02, 2008
1998 Lincoln Town Car Cartier 4.6L Misfire, MIL Lamp on VIN: 1LNFM83W4W
P0304: cylinder 4 misfire. car came in with #4 misfife during ower checks we found that #4 injector stoped fireing after about a minute and a half. checked noid light on known good injectors no problem with light. computer sends ground signel nothing in between except wireing and conect...
May 03, 2008
2004 Mazda MPV ES 3.0L Misfire, MIL Lamp on VIN: JM3LW28J74
P0304: Cylinder 4 Misfire Detected. OK, here it goes. COP ignition system with coil drivers in the ECM. Right from the door I ohmed out the primary and secondary coils on cylinders 4,5,6. That is the front bank near radiator. Secondly I fired up the Modis and my low amp current tester and checke...
May 15, 2008
1999 Ford Ranger XL 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTZR15X3X
P0304: cylinder 4 missfire. ... light,customer complaint of shaking. found p0304. checked spark plug and found dry,no fuel on plug. check cylinder #4 for spark at plug,ok. swapped #4 and #6 spark plugs,miss stayed at #4. replaced #4 injector,upper plenum gasket. ran ok for 5-10 minutes a...
May 24, 2008