![]() Sensor with colder than normal reading will typically cause a rich fuelĬondition which leads to fuel wastage and hence increases wastage and emissions.īalance problem due to a faulty air temperature sensor may be caused by anĮngine vacuum leakage or a restricted catalytic converter. Temperature sensor reading warmer than normal will naturally lead to a leanįuel condition, thereby increasing the risk of detonation and lean misfire. Uses air temperature to control when the EGR valve opens. Temperature sensor may affect the operation of the EGR valve if the PCM Input to turn on a cold start injector, it may thwart the cold start injectorįrom being operational, hence leading a hard cold start condition. Reading accurately when the engine computer uses the air temperature sensor This can lead to a lean or rich fuel mixture that causes drivability Warmer or colder than it actually is, causing it to misjudge the air/fuel Temperature sensor fails to read accurately, the PCM may think the air is ![]() What are the Symptoms of a Failed Air Temperature Sensor? A damaged wiring in the circuit between the sensor and PCM can also lead to malfunction. A loose or rusty wiring connector can affect the output of the sensor. ![]()
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