Our automotive experts have put together the following information about the P0266 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0266 code.

OBD II Fault Code

  • OBD II P0266

    OBD-II Code Decreased engine performance is defined as a Cylinder 2 Contribution/Balance

    When the engine control module (PCM) detects that cylinder 2 is not sufficiently contributing to keeping the engine running properly, it will set code P0266.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P0266 Code

    • Fuel injector failure
    • Internal engine failure
    • Powertrain Control Module (PCM) software needs to be updated
    • Wiring issue

    Common Repairs Needed for the P0266 Code

    Not the OBD-II Code You're Looking For?

    No comments yet...

    Sign in to comment