By reading the position of the throttle, the sensor indicates how much air is being let into the engine. The car's computer uses this reading to send the correct amount of fuel to the engine, where it mixes with the air and is burned.

How often do throttle position sensors need to be replaced?

Throttle position sensors failure is fairly common. The average lifespan of a throttle position sensor is just over 80,000 miles. There is no maintenance for a throttle position sensor — it simply needs to be replaced after it stops working correctly.

How are throttle position sensor issues diagnosed?

The technician will use a scanning tool to check for codes pointing to problems with the throttle position sensor. This also allows the technician to see operating conditions in real time. The technician will also check whether the sensor is adjusted properly in relation to the throttle plate.

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OBD Codes Related to Throttle Position Sensor Replacement

P0510: Closed Throttle Position Switch P2073: Manifold Absolute Pressure/Mass Air Flow - Throttle Position P2074: Manifold Absolute Pressure/Mass Air Flow - Throttle Position

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