AmJay Posted January 23, 2010 Share Posted January 23, 2010 The previous owner of my Comanche installed the solid state (threaded rod) oxygen sensor on the right.. I replaced it with the old style one on the left. Anyone know of any advantage in removing the oxygen sensor? I'm trying to chase down the source of my emissions light. The new oxygen sensor didn't clear it, but it idles a lot smoother. Link to comment Share on other sites More sharing options...
Automan2164 Posted January 23, 2010 Share Posted January 23, 2010 Is it an "Maint Req'd" light? If so, its just a timer under the dash... Unplug it, and the light will go away... I think it was set to go off at 82,500 miles or something... Looks like a clear box with some gears... Rob L. :cheers: Link to comment Share on other sites More sharing options...
jpnjim Posted January 23, 2010 Share Posted January 23, 2010 Is it an "Maint Req'd" light? If so, its just a timer under the dash... Unplug it, and the light will go away... I think it was set to go off at 82,500 miles or something... Looks like a clear box with some gears... Rob L. :cheers: THIS. There is no 'check engine light' on a Renix, the Maintenance Req'd light only goes on for those few MJ'ers who are lucky enough to be driving an 80k mile MJ. Unplug the clock box, smash it with a hammer, and forget about the light. :D Link to comment Share on other sites More sharing options...
jpnjim Posted January 23, 2010 Share Posted January 23, 2010 In answer to the other part of the question, there is no advantage to removing the o2 sensor. I could see being too cheap to replace it, but then why not leave the 'bad' one in, instead of plugging the hole with threaded rod? It's good that the Jeep is running better already, but it might still help to disconnect the battery (turning the key forward a few times while it's disconnected), to help the computer re-learn & adjust to the working O2. Some say Renix's don't 'remember' anything, but disconnecting the battery can't hurt. :D Link to comment Share on other sites More sharing options...
AmJay Posted January 24, 2010 Author Share Posted January 24, 2010 In answer to the other part of the question, there is no advantage to removing the o2 sensor. I could see being too cheap to replace it, but then why not leave the 'bad' one in, instead of plugging the hole with threaded rod? It's good that the Jeep is running better already, but it might still help to disconnect the battery (turning the key forward a few times while it's disconnected), to help the computer re-learn & adjust to the working O2. Some say Renix's don't 'remember' anything, but disconnecting the battery can't hurt. :D I'll give this a try. As you say it can't hurt. I just disconnected the EMR as everyone suggested. I read somewhere that only the 91 and 92 EMR modules can be reset. Mac... Link to comment Share on other sites More sharing options...
1986Comanche Posted January 25, 2010 Share Posted January 25, 2010 Here's what the emissions maintenance timer looks like: I hope this info helps. Link to comment Share on other sites More sharing options...
jpnjim Posted January 25, 2010 Share Posted January 25, 2010 Fixxed: :yes: Link to comment Share on other sites More sharing options...
AmJay Posted January 26, 2010 Author Share Posted January 26, 2010 LOL. I didn't smash it, but I am taking it apart to see what makes it tick. For $45.00 I can buy a new one to smash in 82,500 miles.... Mac... Link to comment Share on other sites More sharing options...
freakjeep93 Posted January 26, 2010 Share Posted January 26, 2010 here's another idea. remove the bezel take bulb out put in the pile to be samashed and forget the light was ever there Link to comment Share on other sites More sharing options...
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