Where do i find the oxygen sensor location on 97 ford explorer?

Here is no fuse for the oxygen sensor. The only fuse is for the ECM.
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On a 1997 Ford Explorer, there is a 20 amp mini fuse for the Hego system
(heated exhaust gas oxygen sensor) in location # 11 in your power distribution box
in the engine compartment. THE PD BOX IS LIVE - DISCONNECT YOUR
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