P0184 Code - Fuel Temperature Sensor 'A' Circuit Intermittent

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    fault code Administrator Staff Member

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    What Does P0184 Mean?

    OBD-II Code P0184 is defined as a Fuel Temperature Sensor "A" Circuit Intermittent

    The Fuel Temperature Sensor tells the engine control module (PCM) the temperature of the fuel. When the PCM detects an implausible signal from the Fuel Temperature Sensor, the PCM will set code P0184.

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    2008-10-07_195305_fuel_temp_sensor-300x219 (1).jpg

    What are the common causes of P0184 ?
    • An air leak forward of the DPF will change the sensor readings resulting in the code
    • Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
    • Fuel with a large percentage of sulfur will clog the DPF quickly
    What are the symptoms of P0184 ?

    Symptoms of a P0184 diagnostic trouble code may include:
    • Misfire
    • Misfire
    • The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
    • Reduction in engine performance, especially at low RPM levels
    How do you troubleshoot P0184 ?

    While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P0184 code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.

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