Alfa Romeo/Alfa Romeo Digest Archive
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Spider emissions
Nick,
Based on what you sent, and assuming that your 1 year old sensor is still good, it appears that your catalyst is pretty much dead.
Before changing, though, do make sure the O2 sensor is working properly- when its warm, it should switch between .2 and .8 or so Volts. If its not working as intended, even a new catalyst won't help.
Eric Storhok
Core Emissions and Fuel Economy Team
Advanced Powertrain Engineering
(313)33x75011
MD 35, FPC-B
Ford Motor Company
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