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Old 06-01-2003, 08:02 PM   #1
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Default Is my oxygen sensor shot?

How can I tell if my o2 sensors are working properly?
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Old 06-01-2003, 08:37 PM   #2
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Don't worry about #2. It'* just a catalytic sniffer. Hard to tell if an O2 is bad. Most obvious problem is poor mileage, usually at over 50-60k on the sensor. If it'* been that long, change it.
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Old 06-01-2003, 10:35 PM   #3
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Yeah if you think it might be the 02 you might as well change it becuase you car is due for one anyways
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Old 06-01-2003, 11:13 PM   #4
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I had really poor mileage, about 230-240miles to the tank. It was never that good to begin with but after I replaced it I got about 30 and sometimes 40 more miles to the tank. It'* pretty cheap from http://www.gmpartsdirect.com, I think $42 but it'* been a while since I got it. Very easy to change.
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Old 06-01-2003, 11:39 PM   #5
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Napa is the cheapest place I found for one. They want 70$. (Keep in mind, this is in Edmonton). I don't really want to change this out unless I need to , for that price. I bought the car 3 months ago, so I don't know when or if the sensor has been changed.
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Old 06-01-2003, 11:49 PM   #6
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so does that mean mines shot if i only get like 250 a tank? on my 92 ssei...and thats with me not beating on it...i think im at like 180 right now and i have a little over 1/4 tank...
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Old 06-01-2003, 11:53 PM   #7
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Forgot you're in Canada

Do you have any info on the previous owner?
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Old 06-01-2003, 11:59 PM   #8
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Quote:
so does that mean mines shot if i only get like 250 a tank? on my 92 ssei...and thats with me not beating on it...i think im at like 180 right now and i have a little over 1/4 tank...merlin
Sounds like your mileage is pretty similar to mine sometimes. Do you do city driving mostly or highway? Sounds like it could be a problem. It wouldn't hurt to get a new one. But get the ACDelco and not the Bosch. There'* too many bad accounts of using Bosch.
I changed my fuel filter, PCV valve, and O2 sensor at the same time, which also helped my mileage.
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Old 06-02-2003, 12:03 AM   #9
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combination on milage...wahts a pcv valve...
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Old 06-02-2003, 12:11 AM   #10
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Honestly, I don't have much of a clue. I just know where it is and how to change it. It costs less than $3 and you can change it in less than 3 minutes. And if it rattles when you shake it, it should be good. Mine rattled but I changed it anyway. But you have the */C so yours may be in a different location than mine. I'll check into it and let you know where it is unless someone else answers first.
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