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Old 05-30-2008, 02:46 PM   #2
Chiquae07
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Re: How can you figure out what CAT is going out?

i hope you dont have the gxe with 4 o2 sensors...

get the code cleared and see what comes back up. you have one in the header and one after the midpipe.

my guess from lookin at the FMS, is bank 1 sensor 1-2 is the one above the precat in the header, and bank 1 sensor 3-4 is the one after the cat in the header. you shouldnt get a cel for the cat under the car.
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