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P0301 Diagnostic Trouble Code Discussion for January 2019

Cylinder 1 Misfire Detected

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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2014 Ford F-150 XLT 5.0L MIL Lamp on VIN: 1FTNF1CF1E
P0301: Misfire 1. ... and have been chasing these misfire codes ever since. I tried factory plugs and moving coils around but to no avail. Then I found a post talking about the need to reset the neutral misfire profile(crank sensor relearn). When I attempted to do it, th...
January 08, 2019
2010 Hyundai Accent GS 1.6L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire VIN: KMHCM3ACXA
P0301: Misfire 1 Cylinder. Vehicle came in on the tow. Customer was afraid to let it run due to how much the engine would shake and because of the carbon coming out of the exhaust system. Started it. Yes engine would shake. Pulled codes, misfires. Check spark plugs, full of fuel, ...
January 22, 2019
2009 Audi A4 Quattro 2.0L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: WAUVF78K79
P0301: Misfire cyl 1. After replacing the crankcase regulating valve and completing an enjoyable 12 mile test drive the engine all of a sudden now runs extremely rough, with misfiring. Multiple scan tools is showing a negative High Fuel Pressure reading despite swapping known g...
January 24, 2019