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

Subaru Legacy BN/BS (2015-2019) Service Manual / Fuel injection (fuel systems)(h6do) / 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
3 and 4	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. Disconnect the connector (A) of the front oxygen (A/F) sensor.4. Remove the clip (B) securing the front oxygen (A/ ...

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:

Specification
Fuel tankCapacity70 L (18.5 US gal, 15.4 Imp gal)LocationUnder rear seatFuel pumpTypeImpellerShutoff discharge pressure940 kPa (9.58 kg/cm2, 136.3 psi), or lessDischarge rate153 L (40.4 US gal, 33.7 Imp gal)/h or more[12.5 V at 343 kPa (3.5 kg/cm2, 49.7 psi)]Fuel filterIn-tank type ...