Good am bros.. Sensya na, tanong agad bungad ko.. Anyway.. ito yung ginawa namin ng mechanic sa amin..

1) Turn off your engine
2) Locate your diagnostic connector, and look for terminal "OX1" and "E1"
3) Get an analog multi meter (any brand can do)
4) Select to 2.5Vdc range
5) Insert the red colour probe to "OX1", and black colour probe to "E1"
6) Place the multi meter on the windscreen, as near to the driver side as possible
7) Start your engine
8) Wait till it reach working temprature
9) Keep your RPM at 2500
10) Observe you multi meter's needle. It should be moving up and down, from 0 to 2/5 of full scale.
11) Time your watch, a good O2 sensor will move the needle up and down for at least 8 times in 10 sec.

ang prob, di nagmove ang needle - idle at any scale.. kaya ngayon, magpapalit na ako ng sensor.. Just would like to ask kung ano yung part number para sa oxygen sensor (bank 1) ng vios 2006 1.5g.. again.. I apologize for the disturbance..

TIA..