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Our automotive experts have put together the following information about the P2086 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2086 code.

OBD II Fault Code

  • OBD II P2086

    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 P2086.

    Decreased engine performance Symptoms

    • Decreased engine performance

    Common Problems That Trigger the P2086 Code

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