Spectra MA172 Mass Air Flow Sensor

Spectra MA172 Mass Air Flow Sensor

The Spectra MA172 mass air flow sensor is built for direct replacement on select GM applications that use a sensor-only, 3-screw attachment design. It helps restore accurate airflow signal delivery for smoother engine management on vehicles such as the Buick Century, Buick LeSabre, and Pontiac Bonneville.

Key Features

• Programmable ceramic circuit board with premium silicon coating for added resistance to under-hood heat and vibration
• Faster signal response for more consistent airflow measurement
• Uses platinum resistance thermometer sensor technology
• Sensor-only design for applications with 3 screw attachment
• Direct replacement for select Buick, Chevrolet, Oldsmobile, and Pontiac models

Detailed Description

The Spectra MA172 is a mass air flow sensor for emission control systems that measure incoming air so the engine computer can calculate fuel delivery. This part is used on a wide range of 1990-1996 GM vehicles, including Buick Regal, Oldsmobile 88, Pontiac Trans Sport, and Chevrolet Lumina APV/Lumina Van applications. This part cross-references Delphi AF10123 and Standard Ignition MAS0187 for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or stumble during acceleration
• Check engine light related to mass air flow sensor performance
• Poor fuel control from a failing sensor signal
• Driveability issues on high-mileage Buick, Oldsmobile, Chevrolet, and Pontiac vehicles

Installation Notes and Tips

Verify the vehicle uses a sensor-only, 3-screw attachment style before ordering. Confirm connector style and application details against the existing unit on the vehicle. Common fitments include 1995-1996 Buick Century, 1996 Buick LeSabre, 1996 Oldsmobile 88, and 1992-1995 Pontiac Bonneville.

Quality Assurance

Spectra builds this sensor with a ceramic circuit board and protective silicon coating to help it withstand heat cycling and road vibration in demanding under-hood conditions.