P0304 Diagnostic Trouble Code Discussion for September 2019
Cylinder 4 Misfire Detected
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| Help Request | Posted | |
| 2013 Ford Flex Limited 3.5L Misfire VIN: 2FMGK5D84D P0304: . Attention FORD Gurus! This car sets misfire codes only when driving at Wide Open Throttle above 5000 RPM's. You do not feel a misfire at all. I swapped coil and plug with cylinder 5 and no change in code. I unplugged the alternator to eliminate RFI. Mode 6... |
September 26, 2019 | |
| 2000 Honda Civic EX 1.6L Misfire VIN: 1HGEJ8143Y ... pretty much junk. This car came in with check engine light on with codes p1399, p0300,p0301,p0302,p0303 & p0304. Found the timing to be right on the money.... |
September 27, 2019 |
