OBD II Fault Code

  • OBD II P050D

    OBD-II Code Decreased engine performance is defined as a Cold Start Rough Idle

    The engine control module (PCM) monitors misfires on initial startup. When the PCM detects a misfire on startup, the PCM will set code P050D.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Engine may run rough

    Common Problems That Trigger the P050D Code

    • Air intake heater failure
    • Crankshaft Position Sensor (CKP) failure
    • Engine misfire
    • Powertrain Control Module (PCM) failure
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