Mazda3 Mass Air Flow Sensor FEAN-13-215 Hot Film Type

Mazda3 all models (1.6L/2.0L) MAF sensor FEAN-13-215 (compatible with OEM 50571) uses hot-film technology to measure intake air; aids ECU in adjusting injection and ignition timing. Replacing improves idle stability, reduces acceleration lag, and lowers fuel consumption; especially noticeable on cold starts or when exhaust shows black smoke. Direct OEM replacement; universal fit; ensure clean connection to prevent contamination.