Walker 225-91020 Manifold Absolute Pressure Sensor

Walker Products FSK MAP Sensor for OE-Style Engine Control

Walker Products part 225-91020 is a manifold absolute pressure sensor built for accurate engine load input and stable fuel management. It is a direct-fit style replacement for select Buick, Chevrolet, Oldsmobile, and Pontiac applications, including 1994-1995 Buick Skylark and 1995 Chevrolet Cavalier fitments.

Key Features

• Manifold Absolute Pressure Sensor for engine management systems
• Walker Products FSK product line
• Part number 225-91020
• 18.00 wiring harness length
• 3-terminal design with blade terminals
• Oval connector shape with female connector gender and male terminal gender
• Built for select 1994-1995 Buick Skylark, 1995 Chevrolet Cavalier, 1994-1995 Oldsmobile Achieva, and 1994-1995 Pontiac Grand Am and 1995 Pontiac Sunfire applications

Product Details

The Walker Products FSK line focuses on engine management components engineered to meet or exceed OEM standards and specifications. For this MAP sensor, that means a fit-focused replacement designed to deliver the manifold pressure signal the engine control system uses for fuel and ignition calculations. If you are replacing a failing MAP sensor on a 1994-1995 Buick Skylark or a 1995 Chevrolet Cavalier, part 225-91020 provides the correct connector style and terminal layout for the listed applications.

This part cross-references Standard Ignition AS35 and Baldwin 18029 for the same application.

What It Helps Address

• Rough idle caused by incorrect manifold pressure input
• Hesitation or poor throttle response from a faulty MAP sensor
• Check engine light conditions related to sensor signal errors
• Fuel mixture problems tied to inaccurate engine load data
• Driveability issues on select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles

Installation Notes and Tips

Verify connector shape, terminal count, and harness length before installation. Confirm the vehicle application against the listed fitment for 1994-1995 Buick Skylark, 1995 Chevrolet Cavalier, 1994-1995 Oldsmobile Achieva, 1994-1995 Pontiac Grand Am, and 1995 Pontiac Sunfire. After installation, clear diagnostic trouble codes and check for stable idle and normal sensor readings.

Quality Assurance

Walker Products has supplied fuel system and engine sensor components since 1946 and manufactures products to meet or exceed OEM standards. The company supports its parts with in-house manufacturing, product management, engineering, and technical support, and operates as an ISO 9001/IATF16949 certified manufacturer.