Walker 225-1258 Manifold Absolute Pressure Sensor

Overview of Walker Manifold Absolute Pressure Sensor 225-1258

The Walker Products Manifold Absolute Pressure (MAP) Sensor 225-1258 is designed for precise engine management in select Cadillac and Chevrolet vehicles. This sensor plays a critical role in monitoring engine load and optimizing fuel delivery for models such as the Cadillac CTS and Chevrolet Corvette.

• Direct replacement MAP sensor for Cadillac CTS and Chevrolet Corvette
• Part number 225-1258 ensures exact fit and function
• Measures manifold pressure to support engine control systems
• Compatible with emission control sensor systems
• Manufactured under Walker Products brand line for reliability

Product Details and Brand Line Information

Walker Products specializes in emission control components, including sensors that meet OEM specifications. The 225-1258 MAP sensor is part of their sensor category, engineered to provide accurate manifold pressure readings essential for engine performance and emissions compliance. This sensor integrates seamlessly with the vehicle’s engine control unit (ECU) to maintain optimal air-fuel mixture and reduce emissions in Cadillac CTS and Chevrolet Corvette models.

Function and Application of the MAP Sensor

The manifold absolute pressure sensor measures the pressure inside the intake manifold, providing data that the engine control unit uses to calculate air density and adjust fuel injection accordingly. This sensor is critical for:

• Preventing rough idling and engine stalling
• Improving fuel efficiency by optimizing air-fuel ratio
• Reducing engine hesitation during acceleration
• Maintaining proper emissions levels
• Supporting overall engine performance and drivability

Installation Notes and Tips

When installing the Walker 225-1258 MAP sensor, ensure the vehicle is turned off and cooled down. Disconnect the battery before removal of the old sensor to avoid electrical issues. Carefully unplug the sensor connector and remove mounting screws. Install the new sensor in the same orientation and secure it firmly. Reconnect the electrical connector and battery, then clear any diagnostic trouble codes if necessary. Proper installation helps maintain sensor accuracy and engine performance.

Quality Assurance and Warranty

Walker Products maintains strict quality control standards for their emission control sensors, including the 225-1258 MAP sensor. Each unit undergoes testing to meet performance and durability requirements. While specific warranty details are not provided here, Walker Products typically offers coverage consistent with industry standards for emission sensors, ensuring reliability for Cadillac CTS and Chevrolet Corvette owners.