P0300 Diagnostic Trouble Code Discussion for August 2026
Multiple Misfire Detected
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| Help Request | Posted | |
| 2020 Ram 1500 Big Horn 3.6L Misfire VIN: 1C6RRFFG1L P0300: Multiple misfire. misfire on cylinder 1 & 3 under high rpm (4800-5000 ) very repeatable cylinder 1 is the worst but also shows on 3 , compression test shows 170 psi ( fuel trim on bank 1 shows 15.8 bank 2 shows 4.6 )eliminated injectors by swapping banks, known good coi... |
August 03, 2026 |
