Walker 245-1189 Mass Air Flow Sensor

Walker Mass Air Flow Assembly 245-1189

Walker Mass Air Flow Assembly 245-1189 is a direct-fit mass air flow sensor assembly for specific Chevrolet and Pontiac applications. It is built to meet or exceed OEM standards and specifications, with engineering and product support focused on accurate vehicle coverage and dependable engine management performance.

Key Features

• Mass air flow sensor assembly for emission control and engine management systems
• Walker Mass Air Flow Assembly line engineered for accurate application coverage
• Manufactured to meet or exceed OEM standards and specifications
• Supported by Walker Products engineering, product management, and technical documentation
• ISO 9001/IATF16949 certified manufacturing environment
• Cross-reference: Delphi AF10058 for the same application

Detailed Description

Part number 245-1189 is a Walker mass air flow sensor assembly designed for vehicles that require precise airflow measurement for proper fuel delivery and drivability. Compatible With 2004-2006 Chevrolet Malibu and 2004 Pontiac Grand Prix, this sensor assembly supports accurate engine control in applications where the mass air flow signal is critical to performance and emissions operation. The Walker Mass Air Flow Assembly product line focuses on OE-style fitment and application-specific coverage, making 245-1189 a practical replacement choice for these vehicles.

This part cross-references Delphi AF10058 for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or stumble during acceleration
• Check engine light concerns related to mass air flow sensor performance
• Poor fuel trim behavior from incorrect air measurement
• Driveability issues on 2004-2006 Chevrolet Malibu and 2004 Pontiac Grand Prix

Installation Notes and Tips

Verify the connector style, mounting location, and calibration requirements before installation. Confirm the vehicle application by year, make, and model, especially for 2004-2006 Chevrolet Malibu and 2004 Pontiac Grand Prix. After installation, clear diagnostic trouble codes and perform any required relearn or idle adaptation procedures according to the vehicle service information.

Quality Assurance

Walker Products has supplied fuel system and engine sensor components since 1946 and manufactures this part under ISO 9001/IATF16949 certified quality systems. The 245-1189 is backed by Walker’s manufacturing, engineering, and technical support resources.