Walker 245-1161 Mass Air Flow Sensor

Walker 245-1161 Mass Air Flow Sensor

Walker 245-1161 is a complete assembly mass air flow sensor built for accurate airflow measurement and stable engine management. It is a direct replacement for select Nissan 300ZX applications and is supplied with the housing included for a cleaner, more complete service replacement.

Compatible With 1984-1987 Nissan 300ZX, complete assembly. This Walker mass air flow sensor is programmed and tested before release, with fit, form, and function verification performed during production.

Key Features

• Complete assembly design with housing included
• Silver aluminum housing with one rectangular male connector
• 6-terminal spade connection layout
• 100% new sensor, not remanufactured
• Programmed and tested for fit, form, and function
• Built to meet OE-style airflow calibration targets
• Walker part number 245-1161

Product Details

Walker Products develops mass air flow sensors with custom tuned flow characteristics across the airflow range, helping maintain proper fuel trim behavior and consistent drivability. The Complete Assembly line is intended for service situations where replacing the sensor and housing together is preferred, especially when the original housing or air path may be contaminated. Walker 245-1161 is part of a long-running fuel system and engine sensor program from Walker Products, a manufacturer established in 1946 and certified to ISO 9001 and IATF 16949 standards.

This part cross-references AP Exhaust 641610 for the same application.

Common Problems This Part Can Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or stumble during acceleration
• Check engine light related to mass air flow sensor performance
• Fuel trim issues from a worn or contaminated sensor
• Poor drivability after intake tract contamination

Installation Notes

Before installation, inspect the intake tube, connector, and surrounding air path for dirt, oil residue, or damage. Because this is a complete assembly, verify the housing orientation and connector style match the original unit on the vehicle. For best results, avoid touching the sensing element and confirm all intake clamps and seals are secure after installation.

Quality Assurance

Walker mass air flow sensors are produced as new components and are tested during manufacturing for fit, form, and function. The brand’s engineering process includes calibration verification and on-vehicle testing to support consistent operation on the specified Nissan 300ZX applications.