Spectra MA390 Mass Air Flow Sensor

Reliable Mass Air Flow Sensor for Buick, Cadillac, and Chevrolet

The Spectra MA390 Mass Air Flow Sensor is designed to provide accurate airflow measurement for a range of Buick, Cadillac, and Chevrolet vehicles. This sensor helps maintain optimal engine performance and fuel efficiency by delivering precise data to the engine control unit.

• Compatible with Buick Allure, LaCrosse, and SRX models
• Fits Cadillac ELR and SRX vehicles
• Suitable for Chevrolet Aveo, Camaro, Cruze, Sonic, Trax, and Volt
• OEM-quality replacement part number MA390
• Ensures accurate air intake measurement for improved engine management

Product Overview and Specifications

The Spectra MA390 Mass Air Flow Sensor is engineered to meet or exceed original equipment specifications for emission control sensors. It accurately measures the volume and density of air entering the engine, which is critical for the engine control module to calculate the correct air-fuel mixture. This sensor is essential for maintaining proper engine operation and reducing emissions in compatible Buick, Cadillac, and Chevrolet models.

Common Applications and Problem Resolution

This mass air flow sensor is used to address several engine performance issues, including:

• Irregular or rough idling in Buick Allure and LaCrosse
• Reduced fuel efficiency in Chevrolet Cruze and Sonic
• Check engine light activation related to air intake sensor faults
• Engine hesitation or stalling in Cadillac ELR and SRX
• Inaccurate air-fuel mixture readings causing emission failures

Installation Notes and Tips

Installation of the Spectra MA390 sensor requires basic mechanical skills and standard hand tools. Before installation, ensure the engine is cool and disconnect the battery to prevent electrical shorts. Carefully remove the old sensor and clean the mounting area to avoid contamination. Align the new sensor properly and secure it firmly to prevent air leaks. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty Information

Manufactured by Spectra, the MA390 Mass Air Flow Sensor undergoes rigorous quality control to ensure durability and reliable performance. This part is backed by a limited warranty covering defects in materials and workmanship, providing confidence in its long-term functionality for your Buick, Cadillac, or Chevrolet vehicle.