neohic Posted September 3, 2007 Share Posted September 3, 2007 In my '88 MJ, is there any such thing as an oxygen sensor relay? If so, where is it located? Thanks! Link to comment Share on other sites More sharing options...
Geonovast Posted September 3, 2007 Share Posted September 3, 2007 I don't think so. If there was one, it would tell you in your owner's manual. I've never heard of an O2 sensor relay. Link to comment Share on other sites More sharing options...
Eagle Posted September 4, 2007 Share Posted September 4, 2007 One of the three or four relays in the bank of relays on the passenger fender is an O2 sensor heater relay, I believe. Link to comment Share on other sites More sharing options...
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