Walker 225-1181 Manifold Absolute Pressure Sensor

Walker MAP Sensor for Saab 9-3

Walker Products Sensor Only MAP Sensor Part Number 225-1181 is an OE replacement manifold absolute pressure sensor for select Saab applications. It measures intake manifold pressure and sends that data to the ECM so fuel delivery and ignition timing can be adjusted for engine load, drivability, fuel economy, and emissions control.

The Sensor Only line focuses on direct-fit replacement sensors built to match OE electrical output, pressure range, and connector fit. For Saab 9-3 and Saab 9-3X vehicles, this Walker MAP sensor supports accurate engine management when the original sensor is no longer reading correctly.

Key Features

• Manifold Absolute Pressure (MAP) sensor for engine load measurement
• OE replacement design for direct integration with the factory system
• Black plastic housing with a rectangle female connector
• 3-terminal blade connection with plug-in fitting type
• Built for high-temperature engine bay conditions and vibration resistance
• Engineered for accurate response and stable electrical output
• Walker part number 225-1181 for easy identification

Detailed Description

Walker Products 225-1181 is a replacement MAP sensor that helps the ECM interpret intake manifold pressure on gasoline and diesel engine management systems. This sensor is built to OE specifications for connector fit, pressure range, and electrical output, making it a direct replacement choice for Saab 9-3 and Saab 9-3X models listed below. This part cross-references Standard Ignition AS315 for the same application.

Compatible With: Fits 2003-2011 Saab 9-3, Sensor Only. Fits 2010-2011 Saab 9-3X, Sensor Only. The Walker Sensor Only line is aimed at restoring factory-style sensor performance without changing the vehicle’s original control strategy.

What It Helps Fix

• Check engine light related to MAP sensor performance
• Rough idle or unstable engine load readings
• Hesitation during acceleration
• Poor fuel economy caused by incorrect manifold pressure data
• Driveability issues tied to incorrect fuel and ignition timing

Installation Notes and Tips

Verify the connector shape, terminal count, and port layout before installation. This sensor uses a black rectangular female connector, 3 blade terminals, and a plug-in fitment style. Confirm the vehicle application against the listed Saab 9-3 and Saab 9-3X fitment before replacing the original MAP sensor.

Quality Assurance

Walker Products engineers this MAP sensor to meet OE-level specifications and tests it for accuracy, responsiveness, and long-term reliability. It is built to withstand engine bay heat, vibration, and intake air contaminants while maintaining consistent sensor output for the ECM.