Need some help with Codes please 08 6.4

Discussion in '6.4L PowerStroke Engine & Drivetrain' started by Comet1966, Feb 4, 2017.

  1. Comet1966

    Comet1966 SDD Junior Member

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    Started the truck this morning and got 2 codes
    p0300 random miss fire
    p0266 cylinder contrib fault

    where should i start here?

    2008 KR 182k
    no tuner, no deletes, all stock
    thanks in advance for any and all help!!
     
  2. shaft850

    shaft850 SDD Junior Member

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    Comet checkout this link http://www.engine-codes.com/p0266_ford.html. I would start with making sure my connections are good look for wiring issues no bare wire on the harness next step would be to either clean the injector or try a good quality cleaner. Clear the code and see if it comes back...
     

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