Date: Sat, 29 Jan 2000 10:19:20 -0800
From: Ken Washington <>
Subject: Re: 91 SAAB 900

The only reasons you should have to replace the catalytic converter and/or mufflers is if the converter is blocked or burned out, and/or your converter, muffler or exhaust pipes are leaking. If a catalytic converter goes bad it blocks and the reduced air flow can be checked at the exhaust pipe. If you have leaks, you will hear and/or see them. If your exhaust system is good, I would look at the Automatic Idle Control Valve first the the O2 or Mass Air Flow sensor later. My saabtech friends 87 9000T 5 spd would not pass the emissions test for high HC. He replaced the AIC valve and all was wonderful. Ken Washington 87 9000S 87 900S 83 900T -----------== Posted via Newsfeeds.Com, Uncensored Usenet News ==---------- The Largest Usenet Servers in the World! ------== Over 73,000 Newsgroups - Including Dedicated Binaries Servers ==-----

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