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Answered 2007-09-14 14:59:18

The O2 sensor on my 1993 B250 is located in exhaust pipe. Look under the van on the driver's side, under the driver's door. You should see an exhaust pipe that has what looks like a spark plug with wiring coming from the top. That is the O2 sensor. It is easy to change. I did mine two days ago and it took about 30 minutes to do. I spent most of my time trying to get the wiring harness connector worked loose, otherwise it is about a 10 minute job - if even that. baxman_dan@hotmail.com

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