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Roy
Roy, import/domestic specialest
Category: Car
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Experience:  ASE master tech for 40 years
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Mazda rx8: i have a o2 sensor problem on my Mazda rX8 error

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i have a o2 sensor problem on my Mazda rX8
error code P2270 O2 sensor signal biassed/ stuck lean (bank 1 sensor 2)

does changing the o2 sensor solve this problem and where is this sensor located and how to replace it if I need to.. thanks

good morning my name is XXXXX XXXXX I will assist you today

 

In most cases, this is a faulty sensor. the only job that the rear sensors have is to monitor the cat converter. inspect the wiring around the sensor and connector to be sure there is no defect. it is located under the car behind the cat converter toward the rear of the car. it is secured by a 7/8 hex. there is a special socket for the sensor or you can use a 7/8 open end wrench.

 

Roy

Customer: replied 3 years ago.


hello mate


 


can you clarify this as well please,


 


is it ok to drive with this fault or does it need to be repalced immediately and what effects does this fault have on the car


 


thanks

good day

 

no, you can drive the car this way. a faulty rear O2 sensor has no effect on engine performance. I would not delay too long in the repair but you can drive the way it is.

 

Roy

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