P0304 Diagnostic Trouble Code Discussion for August 2007
Cylinder 4 Misfire Detected
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| Help Request | Posted | |
| 2001 Acura MDX 3.5L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2HNYD18212 P0304: Cylinder 4 Misfire Detected. Vehicle came into shop running on about 3 cylinders. We had tested all of ignition and fuel pressure. All codes listed about existed. Pulled and cleaned all egr ports in upper plenum. Vehicle does run a little better. Now have code p1399=Any cylinder misfiring... |
August 02, 2007 | |
| 2002 Toyota Sienna LE 3.0L Misfire, MIL Lamp on VIN: 4T3ZF13C9Z P0304: Cylinder 4 Misfire Detected. This one has me stumped. It is definitely misfiring and it shows on the Toyota scanner. The STFT on bank 2 is -20% at idle and -5% to -6% at 2500 rpm. Bank 1 trims are near 0. The plugs show signs of over fueling. The Bank 2 VVT never shows to activate like th... |
August 06, 2007 | |
| 1998 Chevrolet K1500 Cheyenne 5.7L Misfire VIN: 2GCEK19R4W P0304: Cylinder 4 Misfire Detected. well I have another one here guys and gals. came into shop with trans. issues hi miles and tcc p1870 hard shifts. we did a pulse width modulation update and seemed to work good.Customer came back few days later felt like tcc shudder and then signal interrupted... |
August 09, 2007 | |
| 2000 Ford Escort ZX2 2.0L Misfire, MIL Lamp on VIN: 3FAKP1138Y P0304: Misfire detected cylinder 4. This car came in for a tuneup. He had driven it for about an hour and it was bucking/jerking on acceleration, but not like a single cylinder misfire. I took him home while this was happening, but the next day when we had time to work on it, it was running go... |
August 10, 2007 | |
| 2002 Volkswagen Passat GLS 1.8L No Start, MIL Lamp on VIN: WVWPD63B72 P0304: Cylinder 4 misfire. ... it was running really bad and then just shut off. Has a P0304 code for cyl 4 mis-fire, the electrical connector to the coil and the coil itself are melted. My scanner is being repaired at this time so I just have a generic code reader, the only data that I... |
August 13, 2007 | |
| 2001 Dodge Dakota 3.9L Misfire VIN: 1B7GL22X41 P0304: Cylinder 4 Misfire Detected. Techs: have a Dakota pick up that at times will misfire on cylinders 2, 4 and 6 only. Fuel pressure is good (50 psi) and I am thinking something with intake since it is only happening on the right side. Any info much appreciated!! |
August 16, 2007 | |
| 1998 Mitsubishi Diamante LS 3.5L Misfire, MIL Lamp on, Lack of Power VIN: 6MMAP57P3W P0304: Cylinder 4 Misfire Detected. Car came in with intermittent miss and lack of power. Scan tested and found code PO304. Replaced ign. wires and v/c gaskets. Small amount of oil in plug holes. Wires were original and KV tested high. Inspected plugs. Has Iridium NGk plugs and they are at .043 ... |
August 16, 2007 | |
| 1999 Ford F-150 Lariat 5.4L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTRX17L7X P0304: 4 misfire. truck came in and found the below codes in the computer. replaced all spark plugs and they where at 80-85 thousands gap when i pulled them out. finished tune up and restarted truck but was still not idling very good. started to check for other codes and found ... |
August 17, 2007 | |
| 1997 Dodge Avenger 2.5L Stall VIN: 4BEAU52N2V P0304: Cylinder 4 Misfire Detected. Mitsu/ Dodge fans please look into crystal ball. This car came in with inter stall. I immediately hooked up fuel gauge, spark tester and injector pulse tester. Wanted to monitor what I was loosing. Car appears to loose none of the above. Holds fuel pressure, W... |
August 28, 2007 | |
| 2002 Toyota Sienna LE 3.0L Misfire, MIL Lamp on VIN: 4T3ZF13C9Z P0304: Cylinder 4 Misfire Detected. This one has me stumped. It is definitely misfiring and it shows on the Toyota scanner. The STFT on bank 2 is -20% at idle and -5% to -6% at 2500 rpm. Bank 1 trims are near 0. The plugs show signs of over fueling. The Bank 2 VVT never shows to activate like th... |
August 29, 2007 | |
| 1998 Volvo S70 2.4L MIL Lamp on VIN: YV1LS576W1 P0304: cyl 4 misfire. This car will set misfire codes intermittantly, no driveability concerns. Freeze frame showed STFT -7.8% LTFT 3.9%. Have performed smoke test for intake leaks, car has plenty of power and runs very smooth. Last time car was in for check engine light it had the... |
August 30, 2007 |
