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OBD II Fault Code

  • OBD II P0093

    OBD-II Code Decreased engine performance is defined as a Fuel System Leak Detected - Large Leak

    The engine control module (PCM) uses multiple sensors to ensure that fuel pressure remains constant within the fuel system. If one of the sensors detects a drop in fuel pressure, the PCM will set code P0093.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Engine may stall
    • Increased fuel consumption

    Common Problems That Trigger the P0093 Code

    • Fuel injector failure
    • Fuel pressure regulator failure
    • Leaking fuel lines
    • Powertrain Control Module (PCM) failure
    • Wiring issue

    Common Repairs Needed for the P0093 Code

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