Standard Ignition MAS0339 Mass Air Flow Sensor

Overview of Standard Ignition Mass Air Flow Sensor MAS0339

The Standard Ignition MAS0339 Mass Air Flow Sensor is designed for precise air intake measurement in select Nissan and INFINITI vehicles. This new sensor ensures accurate engine performance by monitoring airflow, essential for optimal fuel management.

• Attachment Method: Bolt on for secure installation
• Connector Gender: Female with a single rectangular plug-in connector
• Terminal Configuration: Four male pin terminals for reliable electrical connection
• Material: Durable plastic housing (sensor only, housing not included)
• Number of Bolt Holes: Two for stable mounting

Detailed Product Description

The MAS0339 Mass Air Flow Sensor from Standard Ignition is engineered to provide accurate airflow data to the engine control unit (ECU) in compatible Nissan and INFINITI models. Featuring a bolt-on attachment method and a female rectangular connector with one plug-in type connection, this sensor integrates seamlessly with the vehicle’s existing wiring harness. The sensor includes four male pin terminals, ensuring a secure and consistent electrical interface. Constructed from durable plastic, this new sensor is supplied without a housing, focusing on the sensor element itself for direct replacement needs.

Compatible Vehicles and Applications

This mass air flow sensor is compatible with a range of Nissan and INFINITI vehicles, including the Nissan Altima, Murano, Pathfinder, Sentra, and the INFINITI M35h, Q50, Q70, and QX60 models. The part number MAS0339 is specifically designed to meet the emission control sensor requirements for these vehicles, ensuring proper fitment and function.

Common Issues Addressed by MAS0339 Sensor

• Erratic engine idling or stalling due to inaccurate airflow readings
• Reduced fuel efficiency caused by improper air-fuel mixture
• Check engine light triggered by faulty mass air flow sensor signals
• Engine hesitation or lack of power during acceleration
• Emission test failures related to sensor malfunction

Installation Notes and Tips

Installation of the MAS0339 sensor requires unbolting the old sensor and replacing it with this bolt-on unit. Ensure the rectangular female connector is properly aligned and securely plugged in to avoid electrical issues. Since the sensor does not include a housing, reuse the existing housing from the original sensor. Verify that the two bolt holes align correctly for a stable fit. It is recommended to disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Standard Ignition provides this MAS0339 Mass Air Flow Sensor as a new, direct replacement part manufactured to meet OEM specifications. While specific warranty details may vary, Standard Ignition parts typically come with a limited warranty covering defects in materials and workmanship. This ensures reliability and peace of mind when replacing the mass air flow sensor on your Nissan or INFINITI vehicle.