Subaru BRZ 2013 · Service Manual Engine/hybrid system

Intake air flow meter S / A (FA20)

Components Inspection Removal / installation

ENGINE CONTROL
INTAKE AIR FLOW METER S / A (FA20)
EXPLODED VIEW
REMOVAL
1. Disconnection of the battery ground terminal (Refer to )
2. Removal of intake air flow meter SUB-ASSY
(1) Disconnect the connector for intake air flow meter SUB-ASSY.
(2) Remove 2 screws, and remove the intake air flow meter SUB-ASSY.
INSTALLATION
1. Installation of intake air flow meter SUB-ASSY
(1) Using 2 screws, install the intake air flow meter SUB-ASSY.

Standard value:
Tightening torque=1.0N·m { 10kgf·cm} {0.7ft·lbf}
(2) Connect the connector for intake air flow meter SUB-ASSY.
2. Connection of the battery ground terminal

Standard value:
Tightening torque=6.0N·m { 61kgf·cm} {4.4ft·lbf}
ON-VEHICLE INSPECTION
1. Function inspection of intake air flow meter SUB-ASSY
(1) Inspection of intake air amount
CAUTION:
·Perform inspection with the vehicle on a level surface and engine stopped.
·Perform the inspection with the air cleaner ASSY installed.
·Do not suction the exhaust emission from the exhaust tail pipe with the exhaust duct.
(a) Connect the SSM3 to the DLC.
(b) Turn the ignition switch to ON, and then wait for 30 seconds.
(c) According to the display on the SSM3, select [Data monitor] → [Mass Air Flow], and read the intake air amount.
Standard value
Item name
 Inspection conditions
 Standard value
Mass air flow
 Engine stops 30 seconds after IG ON
 Less than 0.85 g/s
CAUTION:
·If it is out of standard value, replace the intake air flow meter SUB-ASSY.
·If it is within standard value, check the intake air flow meter SUB-ASSY. (Refer to )