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    P0181 Fuel Injection Pump Failure

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    Mopar1973Man

    DTC P0181: FUEL INJECTION PUMP FAILURE

    Monitor & Set Conditions

    Fuel injection pump operation is monitored with ignition on. DTC will set if a high or low voltage is detected at the fuel temperature sensor signal circuit inside the fuel injection pump controller.

    Possible Causes

    • Injection Pump - Engine Running
    • Injection Pump - Engine Off

    Testing

    1. Turn ignition on with engine off. Using DRBIII(R) scan tool, erase any stored engine DTCs. Start engine and allow the engine to idle for one minute. Using scan tool, read engine DTCs. If DTC P0181 does not exist, go to next step. If DTC P0181 exists, replace fuel injection pump. See appropriate REMOVAL, OVERHAUL & INSTALLATION article.

    2. Turn ignition off. Turn ignition on with engine off. Using scan tool, clear engine DTCs. Check for engine DTCs with ignition on and engine off. If DTC P0181 does not exist, the test is complete. If DTC P0181 exists, replace fuel injection pump. See appropriate REMOVAL, OVERHAUL & INSTALLATION article.

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