O2 sensor after cat
paulfischer
06-01-2005, 08:30 AM
was wondering what the O2 sensor behind cat regulates.
99 LTZ with 3.8. 118,000 miles.
I replaced the one before cat, and was wondering if the one after it should be replaced.
I've heard people say yes and no on the subject.
Thanks
99 LTZ with 3.8. 118,000 miles.
I replaced the one before cat, and was wondering if the one after it should be replaced.
I've heard people say yes and no on the subject.
Thanks
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