Throttle Position Sensor : A throttle position sensor tells the engine computer and or transmission computer exactly how far open the throttle valve is opened. It is a very important sensor helping the engine computer to adjust the fuel mixtures accordingly. An automatic transmission uses the signal to help figure out when to shift gears. Even your cruise control needs to know hoe open the throttle valve is to help maintain the vehicle speed.

First generation throttle position sensors use a contact on a resistor style sensor. Newer generation sensors are non contact type. These more modern non contact sensors use a Hall effect, inductive, magneto-resistive and other technologies. By sending a resistor type signal to the computer, the computer can understand everything from the base throttle to the WOT (wide open throttle).

Any time the check engine light comes on followed by a strange symptom, you should have the vehicle put on an engine diagnostic computer. A TPS (throttle position sensor) usually sets an engine code when there is a problem. Not all cases will a code set, some situations will require monitoring the tps signal with the scanner data or a scope. A quality drivability technician will understand how the throttle position sensor works and how to properly diagnose any types of problems they display.

If you need a drivability specialist in Tampa, visit Guy’s Automotive. Guy’s Automotive performs all types or computer diagnostics, engine and transmission repairs. Make an appointment for your vehicle today!