Air Flow Meter/Sensor: Specifications

Output Voltage: [1]
^ Terminal 1 to ground, engine idling with no load 0.85 - 1.35 VDC
^ Terminal 1 to ground as engine is revved up to 3.0 VDC
^ Terminal 1 to ground, key "ON"-"ENGINE STOPPED" 0.2 VDC
^ Supply Voltage 12 VDC

[1] Engine fully warmed up, MAF terminal connected.