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Which of the following scan tool readings (engine ar idle) indicates a problem. MAF sensor 3.5g/air...

Which of the following scan tool readings (engine ar idle) indicates a problem.

MAF sensor 3.5g/air flow

Oxygen sensor between 200-800

MAP sensor between 0.88 and 1.62 v

engineering   Mechanical-Engineering   
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Answer #1

all options are perfectly fine but

if the oxygen sensor shows less than 200mv indicates that is a lean mixture and higher than 800mv shows that it is a rich mixture.

the base/best output for oxygen sensor is around 450mv which is having optimum fuel to air ratio

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