P0171 Lexus -Cleaned air flow sensor no leaks could it be oxygen sensor

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P0171 Lexus -Cleaned air flow sensor no leaks could it be oxygen sensor

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anonymous · Answer 1 · 2017-04-16T16:57:02+0000

the air to fuel ratio sensor is what might be bad (bank 1 sensor 1) the oxygen sensor is after the catalytic converter.

to correctly diagnosis it you need and OBD-II to live monitors air to fuel ratio sensor

P0171 Lexus -Cleaned air flow sensor no leaks could it be oxygen sensor

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