Unit inspection

Inspection of intake air flow meter SUB-ASSY

Use a working lamp, visually check the platinum filament (heater) portion of the intake air flow meter SUB-ASSY for foreign matter.

Fig 1: Identifying Intake Air Flow Meter Sub-Assembly Heater Platinum Filament
Courtesy of SUBARU OF AMERICA, INC.

Criteria: No foreign matter

NOTE: If there is a foreign matter on the platinum filament (heater), replace the intake air flow meter SUB-ASSY.

Inspection of intake temperature sensor resistance

Measure the resistance between the terminals.

RESISTANCE SPECIFICATIONS

Inspection terminals	Inspection conditions	Standard value
1 - 2	-20°C {-4°F}	13.6 to 18.4kΩ
	20°C {68°F}	2.21 to 2.69kΩ
	60°C {140°F}	0.49 to 0.67kΩ

Fig 2: Identifying Intake Air Flow Meter Sub-Assembly Connector Terminals

G11258365

Courtesy of SUBARU OF AMERICA, INC.