Hella 009149421 Mass Air Flow Sensor MAF Meter

The Hella 009149421 is a direct-fit replacement mass air flow (MAF) sensor engineered to restore accurate air intake measurement and optimal engine management. Mounted between the air filter housing and the intake manifold, the MAF sensor continuously monitors the volume and density of air entering the engine, providing critical data to the ECU for precise fuel delivery and ignition timing.

Key Features:

• OE-Level Quality: Manufactured to original equipment specifications, ensuring a precise fit and consistent, dependable performance
• High Measurement Accuracy: Advanced sensing element delivers reliable airflow data, supporting correct air-to-fuel ratios for optimized power output and fuel efficiency
• Durable Construction: Built to withstand harsh underhood conditions for a long service life
• Direct Replacement: Designed as a drop-in replacement for the failed or degraded factory sensor — no modifications required
• Restores Engine Performance: Corrects symptoms associated with a faulty MAF sensor including rough idle, poor throttle response, increased fuel consumption, and elevated emissions

A failing mass air flow sensor can trigger diagnostic trouble codes such as P0100, P0101, P0102, or P0103 and negatively affect related engine management and emissions components. Replacing a suspect MAF sensor rather than attempting to clean it is recommended for reliable, long-term results. Professional installation is recommended.