Subaru Legacy BN/BS (2015-2019) Service Manual: Installation

Subaru Legacy BN/BS (2015-2019) Service Manual / Fuel injection (fuel systems)(h6do) / Front oxygen (a f) sensor / Installation

CAUTION:

If lubricant is spilt over the exhaust pipe, wipe it off with cloth to avoid emission of smoke or causing a fire.

1. Before installing front oxygen (A/F) sensor, apply anti-seize compound only to the threaded portion of front oxygen (A/F) sensor to make the next removal easier.

CAUTION:

Never apply anti-seize compound to the protector of front oxygen (A/F) sensor.

Anti-seize compound:

NEVER-SEEZ NSN, JET LUBE SS-30 or equivalent

2. Install the front oxygen (A/F) sensor.

Tightening torque:

21 N·m (2.1 kgf-m, 15.5 ft-lb)

3. Connect the connector (A) of front oxygen (A/F) sensor.

4. Install the clip (B) securing the front oxygen (A/F) sensor harness. (LH side only)

• RH side

• LH side

5. Lower the vehicle.

6. Connect the ground terminal to battery sensor. NOTE

Inspection

1. Check that the front oxygen (A/F) sensor has no deformation, cracks or other damages.2. Measure the resistance between front oxygen (A/F) sensor terminals.Terminal No.Standard3 and 42.0+0.42 &minus ...

Fuel delivery and evaporation lines

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Other materials:

Specification
1. DATA COMMUNICATION MODULE (DCM)Terminal No.DescriptionMeasuring conditionStandardA1 — — — A2 — — — A3LED GREEN — — A4 ←> Chassis groundi-buttoni-button OFF > ON1 M- or more > less than 1 -A5 ←> Chassis groundSOS buttonSOS button OFF > ON1 M- or more > less than 1 -A ...