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International Automotive Technicians Network
Re: Pre and Post cat. O2 sensor graphs
Posted to Technical Theory Forum on 6/28/2002 1 Reply

Hi Randy

Help me out here

I pulled this from a 1998 escort; just happens to be the last car where I had my nose in a Ford manual.

In the Federal Test Procedure Catalyst Efficiency Monitor test, only switches during steady state cruise conditions of a dri... Login to read more.

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