Beck Arnley 158-0631 Throttle Position Sensor

Reliable Throttle Position Sensor for Infiniti, Nissan, Mercury Vehicles

The Beck Arnley 158-0631 throttle position sensor is designed to provide accurate throttle position data for a range of Infiniti, Nissan, and Mercury models. This sensor helps maintain optimal engine performance and fuel efficiency by monitoring the throttle valve angle.

• Compatible with Infiniti 200SX, 300ZX, G20, J30, Quest, Sentra, Villager, and Nissan Frontier, Xterra models
• OEM-quality throttle position sensor ensuring precise throttle input readings
• Part number 158-0631 for easy identification and replacement
• Direct fit replacement for emission control sensor applications
• Durable construction designed to withstand engine bay conditions

Product Details and Functionality

The Beck Arnley 158-0631 throttle position sensor plays a critical role in the vehicle’s emission control system by accurately detecting the position of the throttle plate. This information is sent to the engine control unit (ECU) to regulate fuel injection and ignition timing. Proper throttle position sensor operation is essential for smooth acceleration, stable idle, and overall engine responsiveness. This sensor is compatible with various Infiniti, Nissan, and Mercury models including the Nissan Frontier and Xterra, as well as Infiniti’s 200SX and 300ZX.

Common Applications and Problem Resolution

• Helps resolve engine hesitation or stalling during acceleration
• Addresses inconsistent idle speed issues
• Prevents poor fuel economy caused by incorrect throttle data
• Eliminates check engine light triggers related to throttle position sensor faults
• Improves throttle response and drivability in affected vehicles

Installation Notes and Tips

When installing the Beck Arnley 158-0631 throttle position sensor, ensure the vehicle’s ignition is off and the battery is disconnected to avoid electrical shorts. Carefully remove the old sensor and clean the mounting surface before installing the new unit. Verify proper alignment and secure mounting to prevent sensor misreading. After installation, it is recommended to clear any diagnostic trouble codes and perform a throttle position sensor calibration if required by the vehicle’s service manual.

Quality Assurance and Warranty

Beck Arnley parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The 158-0631 throttle position sensor undergoes rigorous quality control testing to ensure consistent operation. While specific warranty details are not provided here, Beck Arnley typically offers limited warranties on their emission control sensors. Consult product documentation or authorized sources for exact warranty terms.