Walker Products MAF sensors are always 100% NEW and NEVER remanufactured! All sensors are 100% programmed and tested for fit, form, and function. As an industry leading program, Walker Products manufacturers high demand SKUs in their USA facilities with OEM quality components, custom engineered circuit boards, and programing. The Walker Mass Air Flow Sensor program offers replacement sensors in both Sensor Only and Complete Sensor and Housing Assemblies. Sensor only replacement is typically faster and more economical, but some manufacturers recommend that you replace the complete housing assembly to ensure the connector air tubes are clean and to protect the sensor itself, which can be damaged by oils on your hands or even air pollution.
Features & Benefits:
Precise Air Flow Measurement: Provide precise measurement of incoming air, optimizing engine performance and fuel efficiency.
Durable Build: Crafted with high-quality materials, these sensors are built to withstand demanding conditions, ensuring long-lasting reliability and reducing the need for frequent replacements.
Effortless Installation: Designed for easy and straightforward installation, these sensors minimize vehicle downtime during replacement, keeping your vehicle on the road.
Engineered for OE Performance: These sensors are meticulously engineered and rigorously tested to meet and exceed OE performance and durability standards, guaranteeing consistent and accurate air flow readings.
Improved Engine Efficiency: Accurate air flow data helps the ECU optimize the air-fuel mix, enhancing fuel efficiency and performance while ensuring reliable monitoring.
Replacing the Complete Housing Assembly instead of the Sensor Only ensures the connector air tubes are clean and protects the sensor element, which can be damaged by air pollution or oils on your hands.
Check for Vacuum Leaks First!
Vacuum leaks present symptoms similar to a faulty MAF Sensor. When replacing the MAF, always check for vacuum leaks, too. Common sources include:
Leaking Intake Manifold Gasket (found in the "Engine" category) - Vacuum Gauge readings below 17-22 in-Hg (normal manifold vacuum at sea level) at idle may indicate an intake manifold gasket leak.
Note: As elevation increases, readings decrease. Subtract 1 in-Hg from normal manifold vacuum reference for every 1,000 feet increase in elevation above 2,000 feet.
Stuck open PCV Valve - remove the PCV Valve and gently shake it; if it does not rattle, the valve is clogged or dirty and should be replaced.
Cracked Intake Boot (found in the "Engine" category)
Videos
Cleaning Your MAF Sensor
How to Install a MAF Sensor
Additional Resources
RockAuto Newsletter: Maintaining the Optimal Air/Fuel Mixture Attention California Customers - WARNING: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. www.p65warnings.ca.gov
Check for Vacuum Leaks First!
Videos
Additional Resources
RockAuto Newsletter: