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OBD II Fault Code

  • OBD II P2084

    OBD-II Code Decreased engine performance is defined as a Exhaust Gas Temperature Sensor Circuit Range/Performance

    The Exhaust Gas Temperature (EGT) Sensor tells the engine control module (PCM) the temperature of the exhaust gas going into and out of the Selective Catalytic Reduction (SCR). If the PCM detects an implausible signal from the EGT sensor, it will store code P2084.

    Decreased engine performance Symptoms

    • Decreased engine performance

    Common Problems That Trigger the P2084 Code

    • Exhaust Gas Temperature (EGT) sensor failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue
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