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

Subaru Legacy BN/BS (2015-2019) Service Manual / Fuel injection (fuel systems)(h4do) / Front oxygen (a f) sensor / 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.	Standard
1 and 2	2.0+0.42 −0.2 - (when 20°C (68°F))

Removal

1. Disconnect the ground terminal from battery sensor. NOTE2. Lift up the vehicle.3. Remove the under cover. Front Under Cover > REMOVAL4. Disconnect the front oxygen (A/F) sensor connector, and rem ...

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 ...

Other materials:

Removal
1. Lift up the vehicle, and then remove the front wheels.2. Adjust the tilt position of the steering column to the neutral position and the telescopic position to the longest position.CAUTION:Always place the tilt lever to the lock position after the steering column is adjusted.3. Remove the under c ...