Spectra MA199 Mass Air Flow Sensor

Spectra MA199 Mass Air Flow Sensor

The Spectra MA199 mass air flow sensor is built for direct replacement in select GM trucks and SUVs with an integrated housing. It uses a programmable ceramic circuit board with a premium silicon coating to help protect the sensor from under-hood heat swings and road vibration, while the platinum resistance thermometer design supports quicker signal response and consistent airflow measurement.

• Mass air flow sensor for emission control applications
• Programmable ceramic circuit board with protective silicon coating
• Platinum resistance thermometer sensor design for responsive signal output
• Direct replacement for select Cadillac, Chevrolet, and GMC applications
• Cross-reference part numbers include Standard Ignition MAS0258

Detailed Product Information

Use the Spectra MA199 when replacing a failing airflow sensor on vehicles that rely on accurate intake air measurement for engine management. This part is listed for 2007-2008 Cadillac Escalade, Escalade ESV, and Escalade EXT; 2008 Chevrolet Tahoe; 2007-2008 GMC Sierra 1500, Sierra, Yukon, and Yukon XL 1500. It also cross-references Standard Ignition MAS0258 for the same application. The MA199 is a practical choice for restoring proper airflow signal input on GM platforms that use an integrated housing design.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Check engine lights related to mass air flow sensor faults
• Hesitation or poor throttle response during acceleration
• Fuel trim issues from incorrect intake air measurement
• Driveability problems after sensor contamination or electrical wear

Installation Notes

Verify the connector style and integrated housing configuration before installation. Compare the original sensor and housing layout to the vehicle listing, and confirm the part number MA199 against the existing unit. After installation, clear diagnostic trouble codes and inspect for intake leaks or damaged ducting that could affect airflow readings.

Quality Assurance

Spectra describes this sensor with a ceramic circuit board, protective silicon coating, and platinum resistance thermometer technology to support stable operation in demanding under-hood conditions.