Walker 225-91003 Manifold Absolute Pressure Sensor

Overview of Walker Products FSK Manifold Absolute Pressure Sensor

The Walker Products FSK Manifold Absolute Pressure Sensor 225-91003 is designed to provide accurate pressure readings for optimal engine performance. This sensor is compatible with a range of GM vehicles including Buick, Cadillac, Chevrolet, and Pontiac models.

• Wiring harness length: 7.00 inches for flexible installation
• Terminal type: Bullet terminals for secure electrical connections
• Connector shape: Rectangular to match factory wiring harnesses
• Terminal quantity: 3 terminals for precise signal transmission
• Connector and terminal gender: Female for proper fitment

Detailed Product Description

The Walker Products FSK line focuses on emission control components engineered to meet or exceed OEM specifications. The 225-91003 Manifold Absolute Pressure Sensor is built to deliver reliable and consistent pressure data to the engine control unit. Its 7-inch wiring harness length allows for straightforward routing in engine compartments of vehicles such as the Chevrolet Camaro, Buick LeSabre, and Pontiac Firebird. The rectangular female connector with three female bullet terminals ensures compatibility with original equipment connectors, reducing installation complexity and improving electrical contact reliability.

Compatible Vehicles and Applications

This sensor is compatible with a wide range of General Motors vehicles, including but not limited to:

• Buick 60 Special, Century, LeSabre, and Regal
• Cadillac Allante, DeVille, Eldorado, and Seville
• Chevrolet Camaro, Caprice, Impala, Malibu, Monte Carlo, and El Camino
• GMC C2500, K2500, P30, P3500, R3500, and V3500
• Oldsmobile 98, Cutlass, Cutlass Supreme, and Delta 88
• Pontiac Bonneville, Catalina, Firebird, Grand Prix, and Phoenix

Common Issues Addressed by This Sensor

• Erratic engine idle or stalling due to incorrect manifold pressure readings
• Poor fuel economy caused by inaccurate air-fuel mixture adjustments
• Check engine light triggered by faulty manifold absolute pressure sensor signals
• Reduced engine power and performance from improper sensor feedback
• Emission control failures related to sensor malfunction

Installation Notes and Tips

• Ensure the connector is fully seated and locked to prevent signal loss
• Verify wiring harness length is sufficient for your vehicle’s engine bay layout
• Handle bullet terminals carefully to avoid bending or damage during installation
• Consult vehicle service manual for sensor location and torque specifications
• Disconnect the battery before installation to prevent electrical shorts

Quality Assurance and Warranty

Walker Products FSK sensors are manufactured to meet strict quality standards for emission control components. The 225-91003 Manifold Absolute Pressure Sensor undergoes rigorous testing to ensure durability and accurate performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term reliability.