audi 90q 10v exhaust

[Mike Robinson]

The only hole I am aware of on the cat is for the Oxygen Sensor.
Where exactly are you talking about?  Drivers side/ Passenger side?
Is the hole threaded?

Maybe I just never noticed it before.

Mike Robinson
1988 90q 249,000 mi
California

On 2/4/03 8:01 PM, "InfernoCL" <infernocl at wi.rr.com> wrote:

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> Whats up Quattro list. The car is audi 90q 10v
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> My friend and I are wondering why doesour cat have a purge hole, seems like
> its putting out excess noise.
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> What is it for and is it ok to weld it shut? Or is there a plug or some
> sort.
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