ACDelco Throttle Position Sensor

The ACDelco Throttle Position Sensor (TPS) monitors the position of the throttle plate and sends a signal to the engine control module (ECM/PCM). The module uses this signal to manage fuel delivery, ignition timing, idle speed, and transmission shift points. A properly working throttle position sensor helps the engine respond smoothly when you accelerate and run efficiently.

Key Features:

• Gives the engine control module accurate throttle angle data for fuel and ignition management
• Made to meet ACDelco's quality standards, with fit and function engineered for the application
• Helps restore smooth acceleration, stable idle, and consistent shifting when replacing a worn or failing sensor
• Backed by ACDelco, General Motors' parts brand, which is known for OE-level replacement parts

Common Signs of a Failing Throttle Position Sensor:

• Hesitation or surging during acceleration
• Rough or unstable idle
• Illuminated check engine light
• Harsh or erratic automatic transmission shifting

Replacing a faulty TPS (also called a throttle position switch or throttle sensor) with an ACDelco part helps bring back reliable engine performance and drivability. Select the specific part number that matches your application from the options on this page.