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P0304 Diagnostic Trouble Code Discussion for February 2011

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2006 Mercedes-Benz ML350 3.5L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 4JGBB86EX6
P0304: cyl 4 misfire. ... six cylinders (p0301-0306) but I could not fit them all in the spaces above. Car misses and shudders very badly at idle and it seems a little worse once it gets hot. If you rev the engine sometimes it sounds like its hitting on all cylinders but other time...
February 03, 2011
2006 Mercedes-Benz ML350 3.5L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 4JGBB86EX6
P0304: cyl 4 misfire. ... six cylinders (p0301-0306) but I could not fit them all in the spaces above. Car misses and shudders very badly at idle and it seems a little worse once it gets hot. If you rev the engine sometimes it sounds like its hitting on all cylinders but other time...
February 04, 2011
2002 Ford Escape XLT 3.0L Misfire
P0304: Misfire Cyl. 4. ... P0401, it looks like an O2 sensor and DPFE sensor will fix those, but P0304 and P0306 are a different story. This Escape has a misfire under load. This is a new customer so i am not too sure of the history. It does look l...
February 06, 2011
2006 Volkswagen Touareg 3.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVGZG77L66
P0304: . ... P0300 (VW 00768), p0301 (VW 00769) P0306, p0303, p0304. I somehow think the misfire codes may be related to the evap system therefore I am trying to figure ...
February 08, 2011
2007 Honda Odyssey Touring 3.5L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 5FNRL38257
P0304: Cylinder 4 Misfire Detected. I have an Odyssey here that is throwing me for a loop. Came in Mon. with a complaint of stalling at idle. It seems to be mainly when the van is cold, and it has been COLD here lately. Had codes for every cylinder misfire except for cylinder #6. When I started ...
February 09, 2011
2005 Nissan Sentra 1.8L No Start, Hesitation, Misfire VIN: 3N1CB51D85
P0304: Cylinder 4 Misfire Detected. ... a hard start intermittanly with a p0301 it would want to start but stumble a little then pick up and run first thing a checked was coolant in the clyinders foung coolant in number one hole replaced head gasket. promblems still happening but now a p0304 che...
February 15, 2011
2001 Mitsubishi Eclipse Spyder GT 3.0L Hesitation, Stall, Misfire, MIL Lamp on VIN: 4A3AE55H91
P0304: Cylinder 4 Misfire Detected. ... were replaced approximately 1 week before. The complaint was rough idle and sluggish on acceleration( mil was on).They said it started about 5 days after work was done. After diag. test(p0300 and p0304) and smoke testing for...
February 16, 2011
2002 Subaru Impreza WRX 2.0L Hesitation, Surge, Cuts out, Misfire VIN: JF1GD29642
P0304: Cylinder 4 Misfire Detected. ... came to us with a complaint of MIL (p0303) and intermittent rough run. Guy bought the car when it was 2 years old and the MIL has been on & off ever since. Our Subaru tech did a t-belt and plugs because it was due. Gu...
February 22, 2011
1998 Chevrolet Tracker 1.6L Misfire VIN: 3CNBJ1868W
P0304: misfire 4 cly. car came in running bad. found #4spark wire oil soak. changed valve cover gasket and plugs and wires. drove for two days. no check eng. lite or misfire. gave to customer did't even make very far po300. i got it back and kept driving and it set po304. wires are...
February 24, 2011
1997 Toyota 4Runner Limited 3.4L Misfire VIN: JT3HN86R8V
P0304: Cylinder 4 Misfire Detected. veh came in with misfire on 4 cyl,changed spark plugs,coil and wires.cked fuel 47 lbs removed valve cover,ched adj, ok ched ijector for res. inj pulse,ramp,on 2and 4. changed plugs from 4 to 2 changed coils from 1 to 3 still had misfire on #4 cyl
February 24, 2011
1995 Nissan Maxima SE 3.0L Misfire VIN: JN1CA21DXS
P0304: Misfire cylinder 4. Hey i found this maxima to have a bad fuel injector on cylinder 4 [middle cylinder upfront], book time says it pays 3 hrs to replace injector, repair info says to remove the intake plenum and the fuel rail to replace the injector, i noticed that these injector...
February 25, 2011
2000 Toyota Tacoma Limited 3.4L Poor Idle Quality, Misfire VIN: 4TAWN72NXY
P0304: Cylinder 4 Misfire Detected. vehicle has what feels like a dead miss at idle, but miss can be felt while accelerating as well. Has fresh tune and rlaced #4 injector. Can hear slight valve noise cold but goes away rather quickly so I do not suspect a problem there. Any ideas?
February 25, 2011
2007 Audi A6 Quattro 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WAUDV74F67
P0304: cyl 4 missfire. BVJ eingine. Regular client, serviced regularly. as described at idle and just above mil on and flashing, drive the car and the counters drop, light goes out and it's smooth under accel/load/cruise. Come to an idle/stop and RUFF! The lights on, counters are up...
February 28, 2011
2006 Mercedes-Benz ML350 3.5L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 4JGBB86EX6
P0304: cyl 4 misfire. ... six cylinders (p0301-0306) but I could not fit them all in the spaces above. Car misses and shudders very badly at idle and it seems a little worse once it gets hot. If you rev the engine sometimes it sounds like its hitting on all cylinders but other time...
February 03, 2011
2006 Mercedes-Benz ML350 3.5L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 4JGBB86EX6
P0304: cyl 4 misfire. ... six cylinders (p0301-0306) but I could not fit them all in the spaces above. Car misses and shudders very badly at idle and it seems a little worse once it gets hot. If you rev the engine sometimes it sounds like its hitting on all cylinders but other time...
February 04, 2011
2002 Ford Escape XLT 3.0L Misfire
P0304: Misfire Cyl. 4. ... P0401, it looks like an O2 sensor and DPFE sensor will fix those, but P0304 and P0306 are a different story. This Escape has a misfire under load. This is a new customer so i am not too sure of the history. It does look l...
February 06, 2011
2006 Volkswagen Touareg 3.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVGZG77L66
P0304: . ... P0300 (VW 00768), p0301 (VW 00769) P0306, p0303, p0304. I somehow think the misfire codes may be related to the evap system therefore I am trying to figure ...
February 08, 2011
2007 Honda Odyssey Touring 3.5L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 5FNRL38257
P0304: Cylinder 4 Misfire Detected. I have an Odyssey here that is throwing me for a loop. Came in Mon. with a complaint of stalling at idle. It seems to be mainly when the van is cold, and it has been COLD here lately. Had codes for every cylinder misfire except for cylinder #6. When I started ...
February 09, 2011
2005 Nissan Sentra 1.8L No Start, Hesitation, Misfire VIN: 3N1CB51D85
P0304: Cylinder 4 Misfire Detected. ... a hard start intermittanly with a p0301 it would want to start but stumble a little then pick up and run first thing a checked was coolant in the clyinders foung coolant in number one hole replaced head gasket. promblems still happening but now a p0304 che...
February 15, 2011
2001 Mitsubishi Eclipse Spyder GT 3.0L Hesitation, Stall, Misfire, MIL Lamp on VIN: 4A3AE55H91
P0304: Cylinder 4 Misfire Detected. ... were replaced approximately 1 week before. The complaint was rough idle and sluggish on acceleration( mil was on).They said it started about 5 days after work was done. After diag. test(p0300 and p0304) and smoke testing for...
February 16, 2011
2002 Subaru Impreza WRX 2.0L Hesitation, Surge, Cuts out, Misfire VIN: JF1GD29642
P0304: Cylinder 4 Misfire Detected. ... came to us with a complaint of MIL (p0303) and intermittent rough run. Guy bought the car when it was 2 years old and the MIL has been on & off ever since. Our Subaru tech did a t-belt and plugs because it was due. Gu...
February 22, 2011
1998 Chevrolet Tracker 1.6L Misfire VIN: 3CNBJ1868W
P0304: misfire 4 cly. car came in running bad. found #4spark wire oil soak. changed valve cover gasket and plugs and wires. drove for two days. no check eng. lite or misfire. gave to customer did't even make very far po300. i got it back and kept driving and it set po304. wires are...
February 24, 2011
1997 Toyota 4Runner Limited 3.4L Misfire VIN: JT3HN86R8V
P0304: Cylinder 4 Misfire Detected. veh came in with misfire on 4 cyl,changed spark plugs,coil and wires.cked fuel 47 lbs removed valve cover,ched adj, ok ched ijector for res. inj pulse,ramp,on 2and 4. changed plugs from 4 to 2 changed coils from 1 to 3 still had misfire on #4 cyl
February 24, 2011
1995 Nissan Maxima SE 3.0L Misfire VIN: JN1CA21DXS
P0304: Misfire cylinder 4. Hey i found this maxima to have a bad fuel injector on cylinder 4 [middle cylinder upfront], book time says it pays 3 hrs to replace injector, repair info says to remove the intake plenum and the fuel rail to replace the injector, i noticed that these injector...
February 25, 2011
2000 Toyota Tacoma Limited 3.4L Poor Idle Quality, Misfire VIN: 4TAWN72NXY
P0304: Cylinder 4 Misfire Detected. vehicle has what feels like a dead miss at idle, but miss can be felt while accelerating as well. Has fresh tune and rlaced #4 injector. Can hear slight valve noise cold but goes away rather quickly so I do not suspect a problem there. Any ideas?
February 25, 2011
2007 Audi A6 Quattro 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WAUDV74F67
P0304: cyl 4 missfire. BVJ eingine. Regular client, serviced regularly. as described at idle and just above mil on and flashing, drive the car and the counters drop, light goes out and it's smooth under accel/load/cruise. Come to an idle/stop and RUFF! The lights on, counters are up...
February 28, 2011