Walker 225-1566 Manifold Absolute Pressure Sensor

Walker Sensor Only MAP Sensor for Ford and Lincoln

Walker Products Part Number 225-1566 is a manifold absolute pressure sensor built for OE-style replacement on select Ford and Lincoln applications. It measures intake manifold pressure and sends that data to the ECM so the engine can calculate load, fuel delivery, and ignition timing with the correct inputs.

The Sensor Only line from Walker focuses on direct-fit replacement sensors that match OE electrical output, pressure range, and connector fit. For drivers diagnosing drivability concerns on a Ford Escape, F-150, or Lincoln Corsair, 225-1566 provides a straightforward replacement path for the MAP sensor itself.

Key Features

• Manifold Absolute Pressure sensor for engine load measurement
• OE replacement design for direct electrical and connector fit
• Black plastic housing with one oblong female connector
• 4 blade terminals and 1 pressure port
• Built for high engine bay temperatures, vibration, and intake air exposure
• Walker Sensor Only product line for sensor replacement applications

Product Details

Walker 225-1566 is engineered to communicate manifold pressure data to the ECM so the vehicle can adjust fuel injection and ignition timing based on real-time engine conditions. That makes it an important component for maintaining proper engine management on gasoline and diesel platforms. This MAP sensor is a direct replacement for applications that call for part number 225-1566 and cross-references Ford LC3Z9F479B for the same application.

Compatible With 2020-2025 Ford Escape, N/A; 2021-2025 Ford F-150, N/A; 2024-2025 Ford Mustang, N/A; 2025 Ford Transit-150, N/A; 2025 Ford Transit-250, N/A; 2025 Ford Transit-350, N/A; 2025 Ford Transit-350 HD, N/A; 2021-2025 Lincoln Corsair, N/A; 2020-2022 Ford F-250 Super Duty, N/A; and 2020-2022 Ford F-350 Super Duty, N/A.

Common Issues This Sensor Can Address

• Check engine light related to MAP sensor performance
• Rough idle or inconsistent throttle response
• Poor fuel economy caused by incorrect load readings
• Hard starting or hesitation under acceleration
• Incorrect air-fuel calculations from a failing manifold pressure signal

Installation Notes and Tips

Verify connector shape, terminal count, and port layout before installation. This sensor uses a black oblong female connector with 4 male blade terminals and a single port, so matching the OE connector is important for proper fitment. Confirm the vehicle application by year, make, and model before replacing the original sensor, and inspect the intake manifold connection point for contamination or damage that could affect sensor readings.

Quality Assurance

Walker Products designs this MAP sensor to meet OE specifications for electrical output, pressure range, and connector fit. Each unit is tested for accuracy, responsiveness, and long-term reliability to support consistent engine management performance in Ford and Lincoln applications.