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P0304 Diagnostic Trouble Code Discussion for November 2013

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1998 Honda Accord EX 2.3L Misfire VIN: 1HGCG5650W
P0304: Cylinder 4 Misfire Detected. thanks for reading this, the car came in running bad at times. test drove with customer and sure enough when it got warm it skipped. We preformed a good tune up plugs, wires, cap and rotor. On test drive it would misfire at times so we cleaned injectors, and t...
November 05, 2013
1996 Lexus LS400 4.0L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy VIN: JT8BH22F7T
P0304: Cylinder 4 Misfire Detected. came in with clogged cat on passenger side . replaced cat , noticed smelling gas out exhaust . bank 2 running full rich . replaced b2s2 o2 sensor , and all spark plugs . still running rich . very weak injector pulse , untill engine is revved , then gets SUPER ...
November 05, 2013
2002 Subaru Forester L 2.5L Surge, Misfire VIN: JF1SF63592
P0304: Cylinder 4 Misfire Detected. ... 20B0 and 20B1 did not find in alldata or iatn archives. scanner gives no discription.the codes for p0304 p0303 I belive that is bad coil.trying to cover all basis before fix. thanks.
November 08, 2013
2008 Cadillac CTS 3.6L Misfire, MIL Lamp on VIN: 1G6DT57V98
P0304: 4 misfire. ... 4 other shops.Codes for misfire were not on when vehicle came in they came on this morning while I was testing. With your help we can get to the bottom of this. Code P0101 for maf signal comes up. The MAF sensor has been replaced 3 times with dealer parts....
November 13, 2013
2000 Toyota Avalon XL 3.0L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 4T1BF28B2Y
P0304: Cylinder 4 Misfire Detected. ... with check engine light on. Driving down the road seems ok but idle surges slightly. Found misfire codes and p1354 for vvt problem. Went ahead and pulled front valve cover to check for sludge which is common in these engi...
November 13, 2013
1997 Chevrolet Cavalier 2.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G1JC524XV
P0304: Cylinder 4 Misfire Detected. Good Morning Techs, Have this 98 Cavalier that came in with a Miss on Idle on Number 4 Cylinder. After diagnosing could not pinpoint reason for miss at idle (only at idle). Felt as though it was a vacuum leak. Sprayed propane around intake and injector ports,...
November 16, 2013
2002 Dodge Ram 1500 Van 5.2L Misfire VIN: 2B7HB11YX2
P0304: Cylinder 4 Misfire Detected. I have tested everything I can think of.At an idle only the engine misfires on cylinders #3 & #4 . Off idle runs great,no misfires.I have smoked engine for vacuum leaks and repaired the evap hose at throttle body with no change.Tested fuel quality and alco...
November 23, 2013
1998 Honda Accord EX 2.3L Misfire VIN: 1HGCG5650W
P0304: Cylinder 4 Misfire Detected. thanks for reading this, the car came in running bad at times. test drove with customer and sure enough when it got warm it skipped. We preformed a good tune up plugs, wires, cap and rotor. On test drive it would misfire at times so we cleaned injectors, and t...
November 05, 2013
1996 Lexus LS400 4.0L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy VIN: JT8BH22F7T
P0304: Cylinder 4 Misfire Detected. came in with clogged cat on passenger side . replaced cat , noticed smelling gas out exhaust . bank 2 running full rich . replaced b2s2 o2 sensor , and all spark plugs . still running rich . very weak injector pulse , untill engine is revved , then gets SUPER ...
November 05, 2013
2002 Subaru Forester L 2.5L Surge, Misfire VIN: JF1SF63592
P0304: Cylinder 4 Misfire Detected. ... alldata or iatn archives. scanner gives no discription.the codes for p0304 p0303 I belive that is bad coil.trying to cover all basis before fix. thanks.
November 08, 2013
2008 Cadillac CTS 3.6L Misfire, MIL Lamp on VIN: 1G6DT57V98
P0304: 4 misfire. ... 4 other shops.Codes for misfire were not on when vehicle came in they came on this morning while I was testing. With your help we can get to the bottom of this. Code P0101 for maf signal comes up. The MAF sensor has been...
November 13, 2013
2000 Toyota Avalon XL 3.0L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 4T1BF28B2Y
P0304: Cylinder 4 Misfire Detected. ... with check engine light on. Driving down the road seems ok but idle surges slightly. Found misfire codes and p1354 for vvt problem. Went ahead and pulled front valve cover to check for sludge which is common in these engines but motor was clean. Pulled oil...
November 13, 2013
1997 Chevrolet Cavalier 2.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G1JC524XV
P0304: Cylinder 4 Misfire Detected. Good Morning Techs, Have this 98 Cavalier that came in with a Miss on Idle on Number 4 Cylinder. After diagnosing could not pinpoint reason for miss at idle (only at idle). Felt as though it was a vacuum leak. Sprayed propane around intake and injector ports,...
November 16, 2013
2002 Dodge Ram 1500 Van 5.2L Misfire VIN: 2B7HB11YX2
P0304: Cylinder 4 Misfire Detected. I have tested everything I can think of.At an idle only the engine misfires on cylinders #3 & #4 . Off idle runs great,no misfires.I have smoked engine for vacuum leaks and repaired the evap hose at throttle body with no change.Tested fuel quality and alco...
November 23, 2013