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Would not having the second O2 sensor installed in my test pipe cause a slight rich condition?...

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Old 07-03-2003, 06:57 AM
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Default Would not having the second O2 sensor installed in my test pipe cause a slight rich condition?...
I have the second O2 sensor hanging on my fire wall right now...by the way I'm running a T-28 - does the kit run slightly rich to begin with?
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Old 07-03-2003, 07:00 AM
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Ever thrown a CEL from having the sensor exposed like that?
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Old 07-03-2003, 07:03 AM
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Nope, no CEL here.
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Old 07-03-2003, 07:03 AM
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what test pipe u running?
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Old 07-03-2003, 07:14 AM
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Mine runs a little rich w/ both 02's...
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Old 07-03-2003, 07:31 AM
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Not sure, It Ed's (WYSIWYG) old test pipe.
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Old 07-03-2003, 07:32 AM
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Default Second 02 does nothing for the fuel trim, it just meters the a/f ratio
to make sure the cat is within spec. What year is your car and do you know what your 02 readings are at wot?
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Old 07-03-2003, 07:45 AM
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No, that should work and that's the trick for the 2nd 02
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Old 07-03-2003, 08:38 AM
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Does not always work.
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Old 07-03-2003, 08:41 AM
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Can you elaborate on why or in what cases it wouldn't?
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