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  • P0008 - Engine Position System Performance

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    Mopar1973Man

    P0008 - Engine Position System Performance

    Theory of Operation

    The Powertrain Control Module (PCM) will turn on the MIL lamp immediately after this diagnostic runs and fails.
    The PCM will turn off the MIL lamp after the diagnostic runs and passes in four consecutive drive cycles.

    When Monitored and Set Conditions

    When Monitored: This diagnostic runs continuously when the following conditions are met:
    • With the engine running.

    Set Conditions:

    • The Powertrain Control Module (PCM) has detected that the Crank Position Sensor (CKP) and Cam
    Position Sensor (CMP) signals are reversed.

    Default Actions:

    • The MIL will illuminate

    Possible Causes

    CRANK AND CAM POSITION SENSOR CONNECTORS REVERSED

    Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. (Refer to
    28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

    Diagnostic Test

    1. ACTIVE DTC
    1. Ignition on, engine not running.
    2. With the scan tool, clear the DTC.
    3. Start or crank the engine.
    4. With the scan tool, read DTCs.

     

    Did the DTC reset?
    Yes
    • Go To 2
    No

    • Perform the INTERMITTENT CONDITION diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

     

    2. CRANK AND CAM SENSOR CONNECTORS REVERSED


    1. This DTC indicates that the CKP and CMP Position Sensor signals are reversed.
    2. Switch the CKP and CMP Position Sensor connectors.
    3. With the scan tool, clear the DTC.
    4. Start or crank the engine.
    5. With the scan tool, read DTCs.

     

    Did the DTC reset?

    Yes
    • Using the wiring diagram as a guide, check the connectors and wiring for proper configuration.
    • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
    No
    • Repair complete.
    • Perform the POWERTRAIN VERIFICATION TEST - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).


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