O2 sensors i have a 2004 4 cil wrangler - JeepForum.com
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post #1 of 2 Old 09-22-2017, 10:06 PM Thread Starter
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2004 TJ Wrangler 
Join Date: Jul 2012
Location: Leesville
Posts: 17
I think it is time to replace my o2 sensors I keep getting a code on one of them I have 150k on my jeep I want to know do I need to change only one of them or all of them I have read a lot of posts saying not to use bosh and some say not to use moper and other saying use NGK okay with all this said I read a post that said that after I replaced them I need to reset my computer by unhooking the positive terminal and touch it to the engine to clear out any power to the computer ( but not to the negative battery post) by do all this the computer would start to gather information on the first 50 starts reconfigure the new o2 sensors can someone please give me a little help and tell me what is the best way to go on this thanks

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post #2 of 2 Old 09-22-2017, 11:06 PM
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2009 JK Wrangler 
Join Date: Aug 2007
Location: Lakewood
Posts: 4,571
I agree with not using Bosch. They make a lot of great stuff, but 02 sensors is not one of them. Personally, I would go with Mopar and might as well do both with that kind of mileage.
Disconnect the battery before you replace them, by the time you're done the computer will have reset. Just hook the battery back up and go. If the CEL still comes on, just give it a few drive cycles to clear the codes.

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