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20 yr. old oxy sensor, time to change?? 700 1988

posted by  Blue Horse on  Tue Jan 1 09:56 CST 2008
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last visit: Mon Apr 8 17:57 CST 2013
[RELATED]

If you have emissions inspection where you live, and it passes, there is nothing to be gained by changing it. On some of the older cars with a 1 wire sensor it was supposed to be replaced every 60K miles. I don't think there is a specific interval to replace the 3 wire sensor. They usually last a long time.

Same with the blue engine temp sensor--if it ain't broke, don't fix it.

If you want to change something as preventitive maintenace, the fuel pressure regulator might be more to the point. They often go bad after about 120-140K.

Also, cleaning the intake, throttle body, and idle control system can make a noticeable difference in the way the car runs.






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