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Re: Downstream O2 sensor?
I rechecked the code no for the one with 2-02 sensors.
It is a code for rear sensor.
Check your fuel trims to see if it is affecting fuel mix.
They should be around 128.
Also Evaporative emissions will cause the o2 sensor to set the 141 code.
And watch fuel pressure and tune up end.
Good Luck
MT
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Remember proper testing gives us the answer to many problems.
MT
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