Nissan Altima 97 engine yellow light on, code P010

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a - 15 Mar 2006 17:51 GMT

Hi everybody,

My Nissan Altima 97 with only 22k miles on has had the yellow engine light
on for several months. The scanned code is P0100 which indicates a faulty
oxygen sensor. Recently the car has started to have an unstable idle, with a
tendency to stall. Could these be related?

I took it to a repair shop and they said that it's actually not the oxygen
sensor but the air flow meter that's bad, and the computer interprets that
as a faulty oxygen sensor, and that changing the sensor wouldn't help. They
quoted me $548 to change the mas air flow meter, with the part costing $450
or so. The price seems totally outrageous to me - is this really the cost?

Is there a way I could figure out myself if all these symptoms are caused by
the air flow meter without actually replacing it? And if this is the cause,
is this something I could fix myself?

Thanks,

A

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Larry Colombo - 15 Mar 2006 22:54 GMT

I had the same problem with my 97 truck. Only my code indicated MAS Air
fault. I replaced the sensor (MAS air sensor) and have had no problems
since. I would expect your problem is the O2 sensor for this reason.

> Hi everybody,
>
[quoted text clipped - 17 lines]
>
> A

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a - 16 Mar 2006 00:29 GMT

Thanks for your reply.

>I had the same problem with my 97 truck. Only my code indicated MAS Air
>fault. I replaced the sensor (MAS air sensor) and have had no problems
>since. I would expect your problem is the O2 sensor for this reason.

So you think it has nothing to do with the mas air flow meter?

Is it easy to change the oxygen sensor?

Thanks,

A

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