OEM 22690-2A000 Oxygen Sensor For Nissan Teana

The operating voltage of the oxygen sensor is too high, that is, it has been shown above 0.6v for the 

main reason.

(1) blockage of fuel injector;

(2) air quality sensor failure;

(3) low fuel pressure;

(4) unmeasured air between the air quality meter and the throttle valve;

(5) unmeasured air at the exhaust manifold gasket;

(6) oxygen sensor heating failure or oxygen sensor smudge.

The main faults caused by abnormal working voltage of oxygen sensor are as follows:

(1) poor engine acceleration;

(2) engine development;

(3) black smoke from the engine;

(4) the engine sometimes dies.