Honda Car Forum

I just bought a 1985 lude, 1.8L dual carb..

I dont have a manual for this car yet so I am hoping someone can yep me out.
The cat-converter is fooked on this thing, it's completly plugged up. My
question is: Is there an O2 sensor hooked up to the cat? I'm planning on
just getting rid of it completly, any issues with this?

You probably have an O2 sensor, but it would be before the cat, so you
shouldn't have any "computer" problems.

"jasonp" <hick@up.com> wrote in message
news:CtBDd.54142$dv1.36874@edtnps89...
>I just bought a 1985 lude, 1.8L dual carb..
>
> I dont have a manual for this car yet so I am hoping someone can yep me
> out.
> The cat-converter is fooked on this thing, it's completly plugged up. My
> question is: Is there an O2 sensor hooked up to the cat? I'm planning on
> just getting rid of it completly, any issues with this?
>
>

"jasonp" <hick@up.com> wrote in message
news:CtBDd.54142$dv1.36874@edtnps89...
>I just bought a 1985 lude, 1.8L dual carb..
>
> I dont have a manual for this car yet so I am hoping someone can yep me
> out.
> The cat-converter is fooked on this thing, it's completly plugged up. My
> question is: Is there an O2 sensor hooked up to the cat? I'm planning on
> just getting rid of it completly, any issues with this?
>
>
With a carb, there are two possibilities. 1985 is in the heart of the
notorious era of "feedback carburetors" - carburetors that were tweaked by
solenoids to carefully adjust the mixture. Feedback carburetors use an O2
sensor, and have a bundle of wires and a bewildering array of vacuum hoses
in most cases. Or it may be an older "mix it and burn it" carburetor that is
running too rich. The O2 sensor is undoubtedly long dead if you have one,
and the cat was probably melted by an over-rich mixture. Removing the cat
won't change much except for clearing the blockage, but is a violation of US
clean air laws. (Assuming you are in the US...) if you are caught and
prosecuted, the penalties are positively medieval - tens of thousands of
dollars (no fooling!) and possible prison time. You should be able to get a
replacement cat for about $100 installed.

Mike

That sounds like a very similar setup to my 89 YJ, it has a brutal computer
controlled carb that is a peice o shit... There are a whack of vaccum lines,
so im assuming it is the "tweaked" version.

Thanks for the input, looking forward to playing with this little "beater"

I'm in Alberta we have no emmisions testing on any vehicle.
"Michael Pardee" <michaeltnull@cybertrails.com> wrote in message
news:s_CdnRYn6v2DzULcRVn-sw@sedona.net...
> "jasonp" <hick@up.com> wrote in message
> news:CtBDd.54142$dv1.36874@edtnps89...
> >I just bought a 1985 lude, 1.8L dual carb..
> >
> > I dont have a manual for this car yet so I am hoping someone can yep me
> > out.
> > The cat-converter is fooked on this thing, it's completly plugged up. My
> > question is: Is there an O2 sensor hooked up to the cat? I'm planning on
> > just getting rid of it completly, any issues with this?
> >
> >
> With a carb, there are two possibilities. 1985 is in the heart of the
> notorious era of "feedback carburetors" - carburetors that were tweaked by
> solenoids to carefully adjust the mixture. Feedback carburetors use an O2
> sensor, and have a bundle of wires and a bewildering array of vacuum hoses
> in most cases. Or it may be an older "mix it and burn it" carburetor that
is
> running too rich. The O2 sensor is undoubtedly long dead if you have one,
> and the cat was probably melted by an over-rich mixture. Removing the cat
> won't change much except for clearing the blockage, but is a violation of
US
> clean air laws. (Assuming you are in the US...) if you are caught and
> prosecuted, the penalties are positively medieval - tens of thousands of
> dollars (no fooling!) and possible prison time. You should be able to get
a
> replacement cat for about $100 installed.
>
> Mike
>
>

The O2 sensor is mounted on the exhaust manifold. It looks like a spark
plug with a wire on top running toward the radiator. I believe that
there is a free flow cat. available on Ebay, Search 85 prelude or 87
prelude.