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

Subaru Legacy BN/BS (2015-2019) Service Manual / Fuel injection (fuel systems)(h4do) / Rear oxygen sensor / Inspection

1. Check that the rear oxygen sensor has no deformation, cracks or other damages.

2. Measure the resistance between rear oxygen sensor terminals.

Terminal No.	Standard
1 and 2	5.6+1.7 −0.6 - (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 rear oxygen sensor connector.(A)Front oxygen ...

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 rear oxygen sensor, apply the anti-seize compound only to ...

Other materials:

Inspection
1. THROTTLE SENSOR (METHOD WITH CIRCUIT TESTER)1. Disconnect the ground terminal from battery sensor. NOTE2. While pressing the section (A) shown in the figure, move the lock lever (B) in the direction of the arrow to disconnect the connectors from the ECM in numerical order as shown in the figure. ...