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Mass Airflow Sensor

MASS AIRFLOW SENSOR RESISTANCE (LEGACY) ⁽¹⁾

Terminal

Specification

Red Wire & Ground

1 Megohm (Min.)

White Wire & Ground

1 Megohm (Min.)

Black Wire & Ground

1 Megohm (Min.)

Black/Red Wire & Ground

Zero Ohms

⁽¹⁾	Measure resistance between specified terminal of airflow sensor connector and ground.

MASS AIRFLOW SENSOR VOLTAGE

Application

⁽¹⁾ Volts

Impreza

⁽²⁾

Justy

⁽³⁾

Legacy

ECU Pin No. 8 & Ground ⁽⁴⁾

Engine Off

0-13

At Idle

13-14

ECU Pin No. 9 & Ground ⁽⁴⁾

Engine Off

0.0-0.3

At Idle

0.8-1.2

ECU Pin No. 10 & Ground ⁽⁴⁾

Engine Off

Zero

At Idle

Zero

Loyale: White Wire & Black Wire Terminals ⁽⁴⁾

0.1-0.5

SVX

⁽²⁾

⁽¹⁾	Voltage should be greater when blowing air through inlet side of airflow meter.

⁽²⁾	Information is not available from manufacturer. See appropriate G - TESTS W/ CODES article in this section.

⁽³⁾	Justy is not equipped with airflow sensor.

⁽⁴⁾	Connect voltmeter between these 2 terminals of airflow sensor connector.