High NOx explained? '81 Scirocco

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nutso fasst - 16 Sep 2008 02:24 GMT

Testing various things to pass smog test, I discovered that the plastic tube
between the air flow sensor and the throttle body was split at the seam,
thus being a major vacuum leak. Not hot on spending $80 for new, I sealed
the old one up.

Now waiting on a Bosal CAT to bring HC down, but perhaps the NOx is no
longer an issue.

I hate seeing old crud in the throttle body, though, and am thinking it
might be good to pull it off and clean it up.

nf

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Craig - 16 Sep 2008 03:43 GMT

LOL. Switch the VIN with a Canadian MK1 Scirocco. They never came with CATS.

You should be able to find those intake boots at a wreckers somewhere.

Craig

> Testing various things to pass smog test, I discovered that the plastic
> tube
[quoted text clipped - 9 lines]
>
> nf

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nutso fasst - 16 Sep 2008 04:14 GMT

> You should be able to find those intake boots at a wreckers somewhere.

Wreckers said "no got" when I asked for the friggin rubber boot that
connects the plastic tube to the throttle body. Had to buy it from a dealer
for $50. Didn't bother asking wreckers for the plastic tube, i glued the
seam after the dealer said $80 for a new one.

nf

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dave AKA vwdoc1 - 17 Sep 2008 00:07 GMT

What a vacuum leak? ;-)

I might have one of those tubes maybe. I would have to do some searching if
you "really" need one!

Signature

later,
(One out of many daves)

> Testing various things to pass smog test, I discovered that the plastic
> tube
[quoted text clipped - 9 lines]
>
> nf

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