Airtex 5S13021 Accelerator Pedal Position Sensor

The Airtex 5S13021 is a direct-fit accelerator pedal position sensor (APPS) designed to restore precise throttle control and reliable electronic communication between the accelerator pedal and the engine control module (ECM). This sensor monitors pedal position in real time, translating driver input into accurate throttle commands for smooth, responsive acceleration.

Key Features:

• Direct OE replacement — engineered to match original equipment specifications for a hassle-free, plug-and-play installation
• Precision-calibrated sensing element delivers accurate pedal position signals to the ECM
• Durable construction withstands underhood heat cycles, vibration, and moisture exposure
• Restores proper throttle response and eliminates symptoms such as hesitation, surging, or reduced engine power warnings
• Meets or exceeds OEM performance standards

A failed accelerator pedal position sensor can trigger diagnostic trouble codes (DTCs), illuminate the check engine light, and cause drivability issues including erratic throttle response or limp mode. The Airtex 5S13021 provides a quality, cost-effective solution to get the vehicle back to proper operating condition.