Question about 2001 Nissan Maxima
What does that mean?
This involves the rear oxygen sensor on the passenger side. This code indicates the engine air fuel ratio is not being adjusted by the oxygen sensor signal or the ECM as expected to do so, or not adjusted as often as expected to do so once the engine is warmed or under normal engine use.
Symptoms You will likely not notice any drivability problems, although there may be symptoms.
Causes A code P0159 may mean that one or more of the following has happened:
If the code comes back, the problem is more than likely the rear passenger side oxygen sensor. You will likely wind up replacing it but you should also consider these possible solutions:
Posted on Oct 07, 2009
Testimonial: "Many thanks for help re Code P0159. I don't have noticeable driving differences either when the warning light is on or off. I'll do as you advise."
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Posted on Jan 02, 2017
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