quattro digest, Vol 1 #2560 - 23 msgs

[Ti Kan]

Roger Mounsey writes:
> Does anyone know  the purpose of the CO tap tube  (one that enters the
> header between the 2 into 1 junction  and the cat)?

It's a "sniff test" port for measuring the CO of your exhaust prior
to the catalytic convertor.  If you're adjusting the fuel mixture
by measuring the CO (using a CO meter), this would be the place to
connect it.

-Ti
01 S4 2.7 biturbo quattro
84 5000S 2.1 turbo
80 4000 2.0
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