On Apr 2, 3:18=A0am, Toolz <jlsw...@[EMAIL PROTECTED]
> wrote:
> On Mar 29, 8:05=A0pm, AZF <a...@[EMAIL PROTECTED]
> wrote:
>
>
>
> > davejohan...@[EMAIL PROTECTED]
wrote:
> > > On Mar 28, 1:45 pm, AZF <a...@[EMAIL PROTECTED]
> wrote:
> > >> davejohan...@[EMAIL PROTECTED]
wrote:
> > >>> The check engine light in our 2001 Nissan Maxima came on and the
cod=
e
> > >>> is P0420 (Three Way Catalyst Function). I took it to the dealer
and
> > >>> they said that the ECU is up to date (so no reprogram is
necessary)
> > >>> and that the upstream O2 Sensor and the front exhaust tube need to
b=
e
> > >>> changed. They said that it would be $1400 to have it done (which
see=
ms
> > >>> like a lot). I'm fine with changing the O2 Sensor myself, but do I
> > >>> really need to have the tube changed too? If so, is it something I
> > >>> could do myself and how much should I expect to pay for the part?
> > >>> Thanks,
> > >>> Dave
> > >> Hey, Dave,
>
> > >> I had the same problem, and I was told that once I replace the
sensor=
> > >> and check that there are no obstructions in the exhaust tube -- if
it=
's
> > >> the front and something did get in there, you have bigger problems
<g=
> -
> > >> - all should be good. I changed the sensor myself, saved a wad o'
cas=
h,
> > >> and i am even getting better gas mileage.
>
> > >> Good luck,
> > >> Z
>
> > > How do I check if there's something in the exhaust tube? Can I just
> > > take it off and look in it? Or is there a better way?
> > > Thanks,
> > > Dave
>
> > I took mine off...it wasn't that difficult, but it's not something I'd
> > want to do on a cold windy day <g>. Chances are there's nothing in
> > there...it would be awful hard for something to get stuck in there, I
th=
ink,- Hide quoted text -
>
> > - Show quoted text -
>
> I also had the same Diag. code come up on my 2001 Maxima 0420. Of
> course dealer wanted to replace front pre-cat tube and both front
> sensors for a whopping $2400 total bill with labor.
> 1 can of electrical contact cleaner took care of the problem if you
> can beleive this one.
> I am still planning on changing the O2 sensors up front just to safe.
> I had to get the car through vechile inspection and the cleaner
> worked.
>
> John
What did you do with the can of contact cleaner to fix the problem?
Dave
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