Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc p0161 o2 sensor heater circuit bank 2 sensor 2

Dtc p0174 system too lean bank 2

NOTE:Refer to DTC P0175 for diagnostic procedure. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0175 SYSTEM TOO RICH BANK 21. OUTLINE OF DIAGNOSISNOTE:For the detection standard, ref ...

Dtc p015d a/f / o2 sensor delayed response - lean to rich bank 2 sensor 1

NOTE:For the diagnostic procedure, refer to DTC P014E. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P014E A/F / O2 SENSOR SLOW RESPONSE - RICH TO LEAN BANK 2 SENSOR 11. OUTLINE OF DI ...

Other materials:

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/F) sensor harness. (LH side only)5. Apply spray-type lubricant (004301003) or equivalent to the thre ...