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P0301 Diagnostic Trouble Code Discussion for November 2021

Cylinder 1 Misfire Detected

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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2011 Subaru Forester X 2.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: JF2SHABC3B
car came in cel on misfire codes cleared test drove drives good do not notice misfire fz frame shoes code sets around idle 600 to 800 rpm range sometimes only cly 4 other times all foue code sometimes will start fine other it will run rough vaccum will sta...
November 02, 2021
2008 Mercedes-Benz S550 5.5L Misfire VIN: WDDNG71X78
P0301: misfire 1. have been through all the standard tests which all pass but continue to have the #1 and #6 misfires.. every one says injector but i have replaced with no improvement..i have never seen the p0201/p0206 before and i feel sure that there is some quirk to this...
November 22, 2021