David Schwartz wrote:
> Brought my 2000 Max with just over 90,000 miles in today with the
Service
> Engine Light
> My receipt says PO430
> Mechanic says all 4 O2 sensors have to be changed and then there was a
95%
> chance the light will go off.
> Over $950 before tax.
> Told him no. Will go to Nissan.
> Any thoughts?
> Thanks in advance.
>
I had same code on my 2000 SE, curiously after changing from 92 octane
to 89 octane. Stayed on for some time, scan tool verified that that O2
sensor was not moving. I ignored it for some time, light went off.
I do agree that if one O2 sensor is bad, then at least all sensors in
the same position (up or downstream) should be replaced. Replacing all
of them would be best, along with the plugs (maybe a little early, but
who cares?). Anything less (just replacing the bad one) is taking the
cheap way out.
-Mike
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