Walker 225-1422 Manifold Absolute Pressure Sensor

Walker Sensor Only MAP Sensor

Restore accurate manifold pressure readings with this Walker Products Manifold Absolute Pressure Sensor, part number 225-1422. Built as an OE replacement sensor, it communicates intake manifold pressure data to the ECM so fuel delivery and ignition timing can be adjusted for proper engine operation.

The Sensor Only line from Walker focuses on direct-fit replacement sensors engineered for electrical output, pressure range, and connector fit that match OE requirements. This Walker 225-1422 MAP sensor uses a black female connector with a 3-blade terminal layout, oblong plug-in design, and a plastic body for straightforward integration on supported Toyota and Lexus applications.

Key Features

• Manifold Absolute Pressure sensor for engine load measurement
• OE replacement design for accurate ECM signal communication
• Black connector with 1 female oblong plug-in connection
• 3 blade terminals for direct electrical interface
• Plastic sensor body with 1 port configuration
• Built for Toyota and Lexus fitments including Camry, RAV4, Highlander, Tacoma, Tundra, and related models

Product Details

Walker Products 225-1422 is a MAP sensor replacement for vehicles that rely on manifold pressure data to manage air-fuel strategy, ignition timing, and emissions performance. It is engineered to meet OE specifications for output and connector fit, helping maintain consistent sensor communication with the ECM. This part cross-references Standard Ignition AS689 for the same application.

Compatible vehicle coverage includes Fits 2021-2026 Toyota Camry, N/A; Fits 2022-2026 Toyota RAV4, N/A; Fits 2022-2025 Toyota Highlander, N/A; Fits 2024-2026 Toyota Tacoma, N/A; and Fits 2022-2026 Toyota Tundra, N/A. Additional coverage includes Lexus ES250, NX350h, RX350h, and LS500 applications, making this Walker MAP sensor a direct replacement choice for a wide range of Toyota and Lexus engine management systems.

Common Issues This Sensor Can Address

• Check engine light related to manifold pressure or vacuum signal faults
• Rough idle or unstable engine speed
• Hesitation, poor throttle response, or reduced power output
• Incorrect fuel trim behavior caused by inaccurate intake pressure data
• Emissions performance concerns tied to faulty MAP sensor readings

Installation Notes and Tips

Verify the connector shape, terminal count, and fitment notes before installation. This sensor uses a plug-in mounting style and is listed as Sensor Only, so confirm the vehicle application matches the OE sensor configuration. After installation, clear diagnostic trouble codes and confirm live data readings to verify proper ECM communication.

Quality Assurance

Walker Products designs this MAP sensor to OE specifications and tests it for accuracy, responsiveness, and long-term reliability. It is built to withstand engine bay heat, vibration, and intake air contaminants for dependable operation in supported Toyota and Lexus vehicles.