Impreza Coupe FWD F4-1820cc 1.8L SOHC (1995)
d. Measure voltage between Mass Air Flow Sensor connector and body.
Connector & Terminal / Specified Voltage:
(E25) No. 1 - Body / 1O - 13 Volts
3. Check harness connector between ECM and Mass Air Flow Sensor.
a. Turn Ignition Switch to "OFF".
b. Disconnect connector from ECM.
c. Measure resistance of harness connector between ECM and Mass Air Flow Sensor.
Connector & Terminal / Specified Resistance:
(E3O) No. 5 - (E25) No. 2 / 10 Ohms, maximum
(E30) No. 22 - (E25) No. 3 / 10 Ohms, maximum
(E25) No. 3 - Body / 10 Ohms, maximum
d. Measure resistance of harness connector between ECM and body to make sure that circuit does not short.
Connector & Terminal / Specified Resistance:
(E3O) No. 5 - Body / 1 M-Ohm, minimum
(E31) No. 1 - Body / 1 M-Ohm, minimum
