K12 - p0132, B1S1, sensor replaced still p0132, any nissan techys around to commen

Hi all, K12 2006 1.2 engine, engine code p0132, removed and replaced the front sensor Bank 1 Sensor 1, cleared the code and road tested, the light comes back on...... with each road test the light takes longer to come on.... road test 1 - 1mile light on, road test 2 1.5 mile before light came on, may mean something, may not, just an observation.

My code problem is p0132 : 02 signal high bank 1sensor 1.
While engine running: b1s2 sensor fluctates voltage either up or down with increased revs
While b1s1 appears to stay constant at 2.29 volts.

Would appreaite some help please.
Also any where where i can get engine data values ie workshop manual etc test procedures.

Cheers bazz
toyota techy
 
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