Re: Oxygen Sensor Replacement

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Posted by 92sub ( on 13:53:51 05/14/08

In Reply to: Re: Oxygen Sensor Replacement posted by NoEcm

It can fail in both ways. Related to age, the sensor might react slightly slower to fuel trim changes. The SES light will come on for this once the sensor gets too slow to function properly. That's why I said you won't get much advantage to changing a sensor that is not flagged as bad. Things might actually get worse if you install a non-OEM sensor. I say leave it alone. I can also imagine your exhaust threads pulling out when you remove the old sensor. You wouldn't want to deal with that situation just because the sensors are old. Wait for the light.

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