P0304 Diagnostic Trouble Code Discussion for August 2025
Cylinder 4 Misfire Detected
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| Help Request | Posted | |
| 2013 Hyundai Elantra GLS 1.8L Misfire VIN: 5NPDH4AE6D P0304: cylinder 4 misfire. Customer came in with a misfire they had already replaced all coils and plugs vehicle still had a cylinder 1 and 4 misfire. I did the usual swap around of coils, plugs and injectors but misfire stayed on 1 and 4. monitored cam desired vs actual position wh... |
August 15, 2025 |
