Close

OBD II Fault Code

  • OBD II P2658

    OBD-II Code Decreased engine performance is defined as a "A" Rocker Arm Actuator Control Circuit Low

    Newer vehicles use variable valve technology to allow for greater airflow through the engine at higher RPMs. This allows for better performance over a wider range. Some manufacturers are moving to a variable valve lift system that allows the valve to open wider. Internal to the variable lift rocker arm assembly are position sensors so the engine computer (PCM) can monitor what the assembly is doing. If the solenoid inside the assembly fails, code P2658 is set.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P2658 Code

    • Engine oil level is too low
    • Powertrain Control Module (PCM) failure
    • Rocker arm oil pressure solenoid failure
    • Wiring issue
    Not the OBD-II Code You're Looking For?

    No comments yet...

    Sign in to comment