Subaru Outback manuals

Subaru Outback: Knock Sensor

A: REMOVAL

1) Disconnect the ground cable from battery.

Subaru Outback. Fuel Injection (Fuel Systems)

2) Remove the cover (A) and clip (B) from air intake boot assembly.

Subaru Outback. Fuel Injection (Fuel Systems)

3) Loosen the clamp (A) which connects the air intake boot assembly and air cleaner case.

4) Loosen the clamp (B) which connects the air intake boot assembly and throttle body.

Subaru Outback. Fuel Injection (Fuel Systems)

5) Remove the air intake boot from the throttle body, and move it to the left side wheel apron.

Subaru Outback. Fuel Injection (Fuel Systems)

6) Disconnect the connector from the knock sensor.

Subaru Outback. Fuel Injection (Fuel Systems)

7) Remove the knock sensor from cylinder block.

Subaru Outback. Fuel Injection (Fuel Systems)

B: INSTALLATION

1) Install the knock sensor to the cylinder block.

NOTE: The portion of the knock sensor cord that is pulled out must be positioned at a 60º angle relative to the engine rear.

Tightening torque: 24 N*m (2.4 kgf-m, 17.7 ft-lb)

Subaru Outback. Fuel Injection (Fuel Systems)

  1. Front side of vehicle

2) Connect the connector to the knock sensor.

Subaru Outback. Fuel Injection (Fuel Systems)

3) Install the air intake boot assembly.

NOTE: Align the clamp hole with the protrusion of the air intake boot assembly.

Subaru Outback. Fuel Injection (Fuel Systems)

Tightening torque:
Clamp (A), (B)
3 N*m (0.3 kgf-m, 2.2 ft-lb)

Subaru Outback. Fuel Injection (Fuel Systems)

4) Connect the battery ground terminal.

Subaru Outback. Fuel Injection (Fuel Systems)

C: INSPECTION

1) Check that the knock sensor has no deformation, cracks or other damages.

2) Measure the resistance between knock sensor terminals.

Subaru Outback. Fuel Injection (Fuel Systems)

Throttle Position Sensor

A: SPECIFICATION

Throttle body is a non-disassembled part, so do not remove the throttle position sensor from throttle body.

Refer to "Throttle Body" for removal and installation procedure.

Mass Air Flow and Intake Air

Temperature Sensor

A: REMOVAL

1) Disconnect the ground cable from battery.

Subaru Outback. Fuel Injection (Fuel Systems)

2) Disconnect the connector (A) from the mass air flow and intake air temperature sensor, and remove the mass air flow and intake air temperature sensor.

Subaru Outback. Fuel Injection (Fuel Systems)

B: INSTALLATION

Install in the reverse order of removal.

Tightening torque: 1 N*m (0.1 kgf-m, 0.7 ft-lb)

C: INSPECTION

1. CHECK MASS AIR FLOW SENSOR UNIT

1) Connect the battery positive terminal to terminal No. 3 and the battery ground terminal to terminal No. 4, the circuit tester positive terminal to terminal No. 5 and the circuit tester ground terminal to terminal No. 4.

Subaru Outback. Fuel Injection (Fuel Systems)

2) Check the voltage changes when air is blown to the mass air flow sensor unit in arrow direction.

Subaru Outback. Fuel Injection (Fuel Systems)

2. CHECK INTAKE AIR TEMPERATURE SENSOR UNIT

Measure the resistance between intake air temperature sensor terminals.

Subaru Outback. Fuel Injection (Fuel Systems)

3. OTHER INSPECTIONS

1) Check that the mass air flow and intake air temperature sensor has no deformation, cracks or other damages.

2) Check that the mass air flow and intake air temperature sensor has no dirt.

READ NEXT:

 Manifold Absolute Pressure Sensor

A: REMOVAL 1) Disconnect the ground cable from battery. 2) Remove the cover (A) and clip (B) from air intake boot assembly. 3) Loosen the clamp (A) which connects the air intake boot assembly and ai

 Oil Temperature Sensor

A: REMOVAL 1) Disconnect the ground cable from battery. 2) Remove the cover (A) and clip (B) from air intake boot assembly. 3) Loosen the clamp (A) which connects the air intake boot assembly and ai

 Main Relay

A: REMOVAL 1) Disconnect the ground cable from battery. 2) Remove the glove box lid assembly. 3) Remove the main relay from the relay holder. B: INSTALLATION Install in the reverse order of removal

SEE MORE:

 Heater Core

A: REMOVAL 1) Disconnect the ground cable from battery. 2) Using the refrigerant recovery system, discharge refrigerant. <Ref. to AC-24, PROCEDURE, Refrigerant Recovery Procedure.> 3) Drain the coolant from the radiator. H4 non-turbo model: <Ref. to CO(H4SO)-14, DRAINING OF ENGINE COOL

 Air cleaner element

WARNING Do not operate the engine with the air cleaner element removed. The air cleaner element not only filters intake air but also stops flames if the engine backfires. If the air cleaner element is not installed when the engine backfires, you could be burned. CAUTION When replacing the a

© 2010-2022 Copyright www.suoutback.com