P0304 Diagnostic Trouble Code Discussion for February 2014
Cylinder 4 Misfire Detected
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| Help Request | Posted | |
| 2010 Ford Expedition Limited 5.4L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1FMJU2A5XA ... and check engine light. Found codes p0304 and p0308. Replaced spark plugs due to condition. Misfire returned in less than 1 mile. Replaced ignition coils. Ran good all day until picked up and started up again after a couple of blocks. We then found that wh... |
February 04, 2014 | |
| 2004 Mazda B2300 2.3L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 4F4YR12D04 P0304: Cylinder 4 Misfire Detected. ... very low power complaint, with a P0351 for coil Primary/Secondary circuit. Spark plug electrodes were bad shape, so I replaced plugs, wires, and the coil with a new Denso unit. 20 miles later the same code came back with th... |
February 05, 2014 | |
| 2004 Mazda B2300 2.3L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 4F4YR12D04 P0304: Cylinder 4 Misfire Detected. ... very low power complaint, with a P0351 for coil Primary/Secondary circuit. Spark plug electrodes were bad shape, so I replaced plugs, wires, and the coil with a new Denso unit. 20 miles later the same code came back with th... |
February 06, 2014 | |
| 2004 Honda Odyssey EX 3.5L Misfire VIN: 2HKRL18624 P0304: Cylinder 4 Misfire Detected. This vehicle got the head gaskets done at another shop, our customer brings it here with the check engine light on. We find that there is a random cylinder misfire under load and that it goes away when the egr valve is disconnected. Installed a new egr no diff... |
February 07, 2014 | |
| 1998 Mercedes-Benz S320 SWB 3.2L Misfire VIN: WDBGA33G3W P0304: Cylinder 4 misfire. This car idles fine but as soon as you accelerate at all the misfire counter on cylinder 3 and 4 exceeds the limit and turns off the injectors on those two cylinders. The misfire recognition on the SDS show zero on the other cylinders and #s 3 and 4 hang aroun... |
February 07, 2014 | |
| 1999 Mazda B4000 SE 4.0L Poor Idle Quality, Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 4F4ZR17X6X P0304: Cylinder 4 Misfire Detected. First, all data readings are at idle. Symptom is intermittent and will happen at idle and/or cruising. Customer complained of always running rough while cold, and now it runs rough with no power intermittently hot along with the rough cold idle. Related histor... |
February 10, 2014 | |
| 1999 Mazda B4000 SE 4.0L Poor Idle Quality, Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 4F4ZR17X6X P0304: Cylinder 4 Misfire Detected. First, all data readings are at idle. Symptom is intermittent and will happen at idle and/or cruising. Customer complained of always running rough while cold, and now it runs rough with no power intermittently hot along with the rough cold idle. Related histor... |
February 11, 2014 | |
| 2002 Honda Civic EX 1.7L Misfire P0304: 4 cyl. misfire. To all Techs, This Honda Civic has an "intermittent" misfire that seems to occur when driving at highway speed. The "intermittent" misfire occurs when the VETC system is either ON or OFF. I even remove the EGR valve for testing but the misfire ... |
February 18, 2014 | |
| 2005 Audi S4 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WAUXL68E85 P0304: misfire cyl 4. Hello all. This car was towed into us. P0346 code and all cylinders misfiring. did compression test and found the following results cyl 1 25 lbs cyl 5 60 lbs cyl 2 75 lbs cyl 6 75 lbs cyl 3 40 lbs cyl 7 70 lbs cyl 4 25 lbs cyl 8 85 lbs this is a 4.2 litre v8... |
February 19, 2014 | |
| 1999 Toyota Tacoma DLX 3.4L Misfire VIN: 4TAWN72N7X P0304: Cylinder 4 Misfire Detected. Under load we have a misfire on cyl. 3 and 4 (codes:PO300, PO303, PO304). I have replaced the air filter, fuel filter, and MAF sensor. I have moved the coils and plugs on both cyl. with no change. I have cleaned the throttle body and checked for vacuum leaks a... |
February 19, 2014 | |
| 2003 Volkswagen Beetle GLS 2.0L MIL Lamp on VIN: 3VWCK21C03 P0304: misfire 4. Car came in from another shop misfire #3 and #4 cylinders. We check compression #1 & #2 100 psi, #3 & #4 150psi. Cylinder leakage test indicated head gasket leak 1 to 2 cylinder. Replaced head gasket. Compression now 150 psi all cylinders. Test driven ... |
February 20, 2014 | |
| 2005 Chrysler PT Cruiser Classic 2.4L MIL Lamp on VIN: 3C4FY48B65 P0304: Cylinder 4 Misfire Detected. ... with code p0016,p0300,p0301,and [...] cam sensor,still had misfire codes,replaced ignition coil,car ran great.Delivered car to customer,she called back about 2 hours later saying car was doing the same thing,she brought it b... |
February 21, 2014 | |
| 2001 Hyundai Tiburon 2.0L Poor Idle Quality, Hesitation, Cuts out, Misfire, MIL Lamp on VIN: KMHJG25F41 P0304: Cylinder 4 Misfire Detected. ... will store codes p0300 p0301 p0302 p0304. Will never store a p0303. Drove car last visit and it ran pretty good but somewhat sluggish and had a hesitation on tip-in throttle. Car is back today with same codes and does run quite differently. Has somewhat of... |
February 24, 2014 | |
| 2005 Chrysler PT Cruiser Classic 2.4L MIL Lamp on VIN: 3C4FY48B65 P0304: Cylinder 4 Misfire Detected. ... with code p0016,p0300,p0301,and [...] cam sensor,still had misfire codes,replaced ignition coil,car ran great.Delivered car to customer,she called back about 2 hours later saying car was doing the same thing,she brought it b... |
February 27, 2014 |
