Standard Ignition MAS0256 Mass Air Flow Sensor

Mass Air Flow Sensor for Accurate Airflow Readings

The Standard Ignition MAS0256 mass air flow sensor is a complete assembly built for precise airflow measurement and stable engine management. It is a direct-fit emission control sensor for select Chevrolet Malibu and Pontiac Grand Prix applications, with OE-style connector and housing details for straightforward replacement.

Key Features

• 100% new, never remanufactured construction
• Computer-tested for accurate airflow signal output under demanding engine conditions
• Dual-heated sensing elements for consistent performance across air/fuel systems
• High-quality sensing elements resist supply voltage changes
• Complete assembly with plastic housing included
• Clamp attachment method, oval female connector, 5 blade terminals

Detailed Description

Standard Ignition MAS0256 is engineered to help the ECU receive accurate airflow data so the engine can maintain the correct air/fuel balance. That matters for drivability, fuel control, and emissions performance. This mass air flow sensor is built as a complete assembly with a plastic housing, one oval female connector, and a clamp-style attachment for a clean replacement on the original intake setup. This part cross-references Delphi AF10058 and Spectra Premium MA288 for the same application. It fits 2004-2006 Chevrolet Malibu and 2004 Pontiac Grand Prix, making it a practical choice when replacing a failing Chevrolet Malibu mass air flow sensor or Pontiac Grand Prix airflow meter. The MAS0256 part number is also useful when searching for an OE-style replacement by part number.

Common Issues This Part May Solve

• Rough idle caused by inaccurate airflow readings
• Hesitation or poor throttle response during acceleration
• Check engine light related to mass air flow sensor performance
• Incorrect fuel mixture from faulty airflow signal input
• Driveability problems after sensor contamination or electrical failure

Installation Notes and Tips

Verify connector shape, terminal count, and housing style before installation. The MAS0256 uses a clamp attachment and a 5-terminal blade connection, so matching the original configuration is important for proper fitment. Inspect the intake tract for leaks, dirt, or damaged wiring before installing the new sensor. For best results, clear diagnostic trouble codes after replacement and confirm airflow readings with a scan tool.

Quality Assurance

Standard Ignition builds this sensor as a new, computer-tested component with dual-heated sensing elements and voltage-resistant sensing materials to support consistent signal output in hard engine conditions.