Airflow Meter/Sensor Inspection (MPV 2.6L): Notes

1. Pull rubber boot back from airflow sensor connector. Check terminal voltages. See Fig 1 . See AIRFLOW SENSOR TERMINAL VOLTAGES  table.
2. If voltages are not correct, check wiring for open or short. If wiring is okay, check burn-off operation. If ECU control of burn-off operation is okay, and voltages are still incorrect, replace airflow sensor.

AIRFLOW SENSOR TERMINAL VOLTAGES

Terminal Wire Color	Volts - Ignition ON	Volts - Engine Running
Black/Yellow (1) (Power Supply)	12	12
Green/Orange (Burn-Off)	0	0
Green/Black (Airflow Mass)	1.0-2.0	1.9-5.0
Green/Yellow (1) (Ground)	About 0	About 0
Black/Orange (Ground)	About 0	About 0
(1) Black/White on MPV 2.6L.

Fig 1: Testing Airflow Sensor (MPV 2.6L)

Courtesy of MAZDA MOTORS CORP.