Question about 2000 Nissan Maxima

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Oxygen sensor clean up ?

I have Maxima 2000 and it has 160 K, The light "check engine soon" is on for a while. I comes up and in a couple months goes away. Today I went to get a sticker. Before that I disconnected battery ( I thought that way my 'light' will go away ) and definitely 'light' is off. But I was rejected at inspection because they couldn't check car's computer ( after battery disconnecting ) and said me to come in a week. I'm suspicious that 'light' will come up again sooner than I'll go back to them.
My questions:
1. How could I temporarily "trick" the 'light' ?
2. Will using fuel injection system cleaning or other additives help in my situation?
3. May I remove and clean oxygen sensor? ( If 'yes' .. how can I do ? )
4. Any other work around would be helpful because I can't spend much money on 8 year old car.
Thanks in advance.

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  • carldale_456 Apr 16, 2009

    do i have to change all the xygen sensor how many sensor it has is it free on pepboys to check it and when the air braether is broke does it has effect to the car



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The check engine soon can refer to a loose or missing fuel cap. The computer checks the tank pressure, and should see it go down when running. If the cap is the case, the light should go out after about 10 starts. The Oxygen sensor cannot be cleaned, and should be replace every 80K miles or so. Running on a degraded sensor makes your fuel mileage worse. Most Pep Boys locations can read the code and tell you the exact cause for that light.

Posted on Jul 01, 2008

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The air intake depends is it before or after the mass air flow sensor. and for the check engine light your cant trick your ecm you will just have to fix the problem by geting the code off the computer but i wont tell you the exact cause.

Posted on May 13, 2009


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Service engine soon light comes on and off

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P0159 is what the read out tells me. Just what do I need to do about this? I turned off the 'Check Engine Light' and it's still off after 2 days. But......!!!

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:
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  • There is an exhaust leak
Possible Solutions The simplest thing to do is to reset the code and see if it comes back.
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:
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