Walker 245-1272 Mass Air Flow Sensor

Walker Mass Air Flow Sensor 245-1272

Walker Mass Air Flow Sensor 245-1272 is a direct-fit engine management sensor for select Porsche 911 applications. It is built for vehicles that use a 5-terminal female connector and includes mounting hardware for service replacement.

Key Features

• Mass air flow sensor for emission control and engine management systems
• Fits 1999-2005 Porsche 911 applications listed below
• 5-terminal female connector
• Mounting hardware included
• Housing not included
• Walker Products manufacturing backed by ISO 9001/IATF16949 quality systems

Product Details

The Walker Mass Air Flow Sensor line focuses on accurate airflow measurement for fuel delivery and drivability control. Part number 245-1272 is engineered to meet or exceed OEM standards and specifications, with application coverage for Porsche 911 models from 1999 through 2005. This part cross-references Standard Ignition MAS0454 for the same application.

Compatible With Porsche 911 models, this sensor supports the engine management system by reporting incoming air volume so the vehicle computer can calculate fuel delivery more precisely. Walker Products has supplied fuel system and engine sensor components since 1946, with in-house manufacturing, engineering, and product support used to maintain application accuracy.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or poor throttle response
• Check engine light related to mass air flow sensor performance
• Fuel trim issues from incorrect air measurement
• Driveability problems on Porsche 911 models with electronically controlled throttle body notes

Installation Notes

• Verify connector style, terminal count, and application notes before installation
• Inspect the intake tract and electrical connector for contamination or damage
• Transfer only the components required by the vehicle service procedure
• Follow factory diagnostic steps after installation to confirm sensor operation
• Use the listed fitment notes for 1999-2001 Porsche 911 and 2002 Porsche 911 applications

Quality Assurance

Walker Products manufactures engine sensors and fuel system components to meet or exceed OEM standards and specifications. The company is ISO 9001/IATF16949 certified and supports its parts with engineering and technical resources for accurate vehicle application coverage.