P0304 Diagnostic Trouble Code Discussion for December 2025
Cylinder 4 Misfire Detected
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| Help Request | Posted | |
| 2013 Cadillac ATS 2.0L Misfire VIN: 1G6AG5RX3D P0304: Misfire cylinder 4. The vehicle originally came in with a po303 code. we replaced the spark plugs in all cylinders and the #3 coil. after repair it idles perfectly, and on a short test drive drove perfect. A second test drive started the same. Perfect idle and smooth accelera... |
December 01, 2025 | |
| 2017 Honda Pilot EX-L 3.5L Misfire, MIL Lamp on VIN: 5FNYF6H55H P0304: 4 cylinder misfire. ... codes and P219B air fuel ratio variation of cylinder (bank 2). The vehicle already had a catalyst code for bank 2. Cat and oxygen sensors were replaced at that time along with the valve adjustment and spark plugs. Vehicl... |
December 17, 2025 | |
| 2014 Volkswagen CC Sport 2.0L Misfire VIN: WVWBN7AN2E P0304: cylinder 4 misfire. ... originally a no start. I pulled the spark plugs and the gaps were all over the place. Previous owner had already changed the coil packs. I changed the plugs and the car runs fine, but codes p0302, p0304, p0299 (turbo under boost) and code p2181 (cooli... |
December 29, 2025 |
