Date:         Tue, 5 Aug 2003 10:13:51 -0400
Reply-To:     Dan Barrett <nullpointer@POBOX.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dan Barrett <nullpointer@POBOX.COM>
Subject:      Re: 84 Exhaust Question
Comments: To: buffy-philip1@COX.NET
Content-Type: text/plain; charset="us-ascii"

>Perhaps the real question, why in the world is there a
> screw on cap on one of my exhaust pipes?


Philip,
I think you're talking about the diagnostic port for an exhaust gas analyzer
-- there's another port on your cat for the oxygen sensor.  The diagnostic
port is where your local engine ninja would hook up a test rig and divine all
sorts of things about the state of your engine based on the chemical makeup
of the exhaust.

Best,
d.
1990 GL -- "Mudskipper"

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