O2 Sensor Did It
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From: Lakeville, MN
O2 Sensor Did It
After replacing the o2 sensor I have gone from 12mpg city/ 15 highway to 19mpg city/ 29 highway. 
The old O2 didn't look so bad but it smelled like oil. I think before I replaced my PCV the oil burning may have damaged it, huh?
The old O2 didn't look so bad but it smelled like oil. I think before I replaced my PCV the oil burning may have damaged it, huh?
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From: Las Cruces, NM
Re: O2 Sensor Did It
Originally Posted by fantastic88
After replacing the o2 sensor I have gone from 12mpg city/ 15 highway to 19mpg city/ 29 highway. The old O2 didn't look so bad but it smelled like oil. I think before I replaced my PCV the oil burning may have damaged it, huh?
The old O2 didn't look so bad but it smelled like oil. I think before I replaced my PCV the oil burning may have damaged it, huh?
, after 115k, i'd say so.
DINOSAURUS BOOSTUS
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From: Enfield, CT
As with any electronic or mechanical piece, some wear better than others. No one can really say what is working good/bad w/o putting an O2 onto a scan tool and watching it flip flop. Even then..what'* really good and whats bad?
I guess you'd need to record the data and over analyse it to a point that putting in a new one if you felt the need would be best.
I guess you'd need to record the data and over analyse it to a point that putting in a new one if you felt the need would be best.
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Originally Posted by daman
Originally Posted by sonoma_zr2
I'm at 218k w/ original
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From: Bad Axe,MI.
I,m just going by my own experience, i just changed mine yesterday(143k, and i noticed on my scan tool(cp9145) it was showing inconsistencies(staying on rich longer than lean instead of cycleing evenly between the two), a sighn of a bad O2 senser. so if mine at 143k is bad i'd bet one at 200k is't much better. 