Subaru Workshop Service and Repair Manuals

Air Flow Meter/Sensor: Specifications
Electrical Components

IGNITION TIMING SPECIFICATIONS

Manual transmission............................................................................................................................................................................................20° /700 rpm
Automatic transmission........................................................................................................................................................................................20° /800 rpm
Firing order...................................................................................................................................................................................................................1-3-2-4

RESISTANCE SPECIFICATIONS

Air flow meter:

Between terminals B and BR and ground.......................................................................................................................................................10 ohms max.
Between power terminal R and ground..................................................................................................................................................................10V min.
Voltage across terminals W and BR.............................................................................................................................................................................1-2V

Auxiliary air valve...............................................................................................................................................................Resistance other than 0 or infinity
Canister purge solenoid....................................................................................................................................................................................32.7-39.9 ohms
Coolant temperature sensor:

20° C (68° F).......................................................................................................................................................................................................2-3K ohms
50° C (122° F)..............................................................................................................................................................................................700-1000 ohms

Fuel injectors..............................................................................................................................................................................................................2-3 ohms
Throttle sensor:

Between terminals 3 and 2.................................................................................................................................................................................6-18K ohms
Between terminals 3 and 1................................................................................................................................................5.8-17.8K ohms (throttle closed)
Between terminals 3 and 1.....................................................................................................................................................1.5-5.1K ohms (throttle open)