Code p0266
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Thread: Code p0266

  1. #1
    Junior Member
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    Sep 2019
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    Code p0266

    Ran into a p0266 code, and am checking to see if I am missing anything in my troubleshooting before I get into replacing a wiring harness or ECU.

    So far I have:

    1) Ran the motor, completely cold on front cylinder hot on the other.

    2) confirmed spark

    3) swapped injectors, both injectors will work in rear cylinder but not in front

    4) tested for power on front cylinder injector plug, power confirmed.

    5) tested for spray with injector out, no spray

    I am leaning heavily towards a bad ecu, but figured I would see if I missed something before starting to replace expensive parts.

  2. #2
    Senior Member
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    The only other thing to test would be the wiring harness. On a '15, the front injector control wire is blue. It is also identifed as K4 at the ECM. I'm guessing that is the pin location on the big connector.
    2015 Wildcat 1000X Ltd, Textron rear axle upgrade, Alba slotted brake rotors (front diameter on all 4), flip-up windshield, soft rear window, PRP seats, custom seat mounts with tool storage, 6 pt harnesses, AC spare tire mount, AC step rail/sliders, push-button E-brake, self-cancelling turn signals using rear brake lights, stalk light controls, 4"x7" rearview mirrors, front/rear hitch receivers, receiver mounted winch w/ wireless remote, LED roof light, Rugged intercom & headsets


 

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