Acelerador - Sensor de Posicion (TPS)

Symptoms of a Bad Throttle Position Sensor

A bad or damaged TPS sensor will mess with your vehicle’s performance since the air-fuel mixture is all but guaranteed to be incorrect. In most cases, the Check Engine Light will illuminate with active or stored trouble codes. Other symptoms that commonly show up include hesitation when you’re trying to accelerate some or all the time, as well as less-than-stellar performance.

Since so many vehicle systems are related, a bad TPS sensor can also create a delay or difficulty in your transmission shifting gears. You could also feel a surge at idle or when you’re accelerating since the computer isn’t aware if the throttle body valve is open or closed, or how much airflow there is.

None of the symptoms are exclusive to a TPS sensor, unfortunately, and it can be tricky to diagnose the problem accurately. It’s possible to measure a sensor’s resistance, but if you can monitor its operation on a scan tool, you’re more likely to find if it’s working correctly or not.

Throttle Position Sensor Replacement Cost

Luckily, the TPS sensor is in a rather convenient location to change on most vehicles, right on the side of the throttle body. The throttle position sensor cost ranges from around $40 and up, depending on your car.

Find the right fit for your needs at AutoZone. Filter by year, make, model, and engine size to see TPS sensors and other automotive sensors that work for your car from top brands like Duralast, Dorman, and Santech. Take advantage of Free In-Store and Curbside Pickup to get your parts fast, or select Free Next-Day Delivery on eligible orders.