One of the key components in the engine system of fuel-injected vehicles is the throttle position sensor (TPS). The throttle position sensor, working alongside the engine stepper motor, controls the vehicle’s throttle operation. This sensor is directly related to fuel consumption, and if it malfunctions, it can cause unnecessary engine revving, leading to increased fuel consumption.
The throttle position sensor is a consumable and highly functional component in a vehicle. It is not repairable and must be replaced if it fails. A malfunctioning sensor can exhibit various symptoms, and the most important signs—highlighted in this short video—should be carefully considered during vehicle diagnostics.