Down stream O2 Sensor in cat? is this right?
Down stream O2 Sensor in cat? is this right?
98 accord 4cyl coupe so here is my dumb question. why is the O2 (down Stream) sensor located on the CAT? when before it was located before?
i installed new header and down pipe but when i looked at the down pipe it had a bolt where the O2 sensor would go but the O2 was in the cat???? my 91 had the O2 before the cat.
i installed new header and down pipe but when i looked at the down pipe it had a bolt where the O2 sensor would go but the O2 was in the cat???? my 91 had the O2 before the cat.
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