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Subject:Re: Revisiting the Catalytic Converter...
From:Matthew Pollard
Date:Mon, 5 Aug 2002 15:19:28 -0700

oxygen sensor bad = running rich

running rich = more work for cat to do

more work for cat = getting hot & melting, literally.

unplug your oxygen sensor and see how you run. better? if so, then
replace the oxygen sensor. if not change then look elsewhere.
matthew