Standard Ignition MAS0317 Mass Air Flow Sensor

Overview of Standard Ignition Mass Air Flow Sensor MAS0317

The Standard Ignition MAS0317 Mass Air Flow Sensor is designed for precise air measurement in Subaru vehicles, including models like the Forester, Impreza, and WRX. This sensor ensures accurate air intake readings to optimize engine performance and emissions control.

• Bolt-on attachment method for secure installation
• Female oval connector with one connection point
• Plastic housing excluded; sensor only
• Two bolt holes for mounting stability
• Five male pin terminals for reliable electrical connection

Technical Details and Compatibility

This mass air flow sensor features a bolt-on design that fits directly onto the intake system of compatible Subaru models such as the Baja, Legacy, Outback, WRX STI, XV, and XV Crosstrek. The sensor includes a single female oval connector and five male pin terminals, ensuring a precise and secure electrical interface. The sensor is constructed from durable plastic materials and is supplied without a housing, focusing on the sensor component itself. The two-bolt hole configuration provides a stable and straightforward mounting process.

Applications and Problem Resolution

The Standard Ignition MAS0317 sensor is used to measure the volume and density of air entering the engine, which is critical for proper fuel injection and emissions control. It is compatible with Subaru vehicles that require this specific sensor type.

• Resolves engine performance issues related to inaccurate air flow readings
• Helps correct rough idling and stalling problems
• Addresses check engine light triggers related to mass air flow sensor faults
• Improves fuel efficiency by providing accurate air measurement
• Supports emissions compliance by ensuring proper air-fuel mixture

Installation Notes and Tips

Installation of the MAS0317 sensor requires unbolting the old sensor and securing the new sensor using the two bolt holes. Ensure the female oval connector is properly aligned and connected to the vehicle’s wiring harness. Since the sensor is supplied without a housing, verify that the existing housing is intact and properly sealed to prevent air leaks. Handle the sensor carefully to avoid damage to the pin terminals.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The MAS0317 sensor undergoes rigorous quality control to ensure reliable performance in Subaru vehicles. Warranty coverage details should be confirmed with the point of purchase or Standard Ignition documentation.