All of your O2 sensors go hay wire? - JeepForum.com

 
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post #1 of 4 Old 10-29-2010, 02:22 AM Thread Starter
Lafaso870
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All of your O2 sensors go hay wire?

Have any of y'all had this problem? My wife's 09 KK had a check engine light so I took it to the dealership and was amazed to find out error messages on 4 O2 sensors. Its covered under warranty so no worries, but they think the module when bad. They asked if I had driven it through water which of course I haven't since its a 2WD and hers. Hmm interesting...

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post #2 of 4 Old 10-29-2010, 04:48 AM
Elt31987
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first time Ive heard of a KK having all 4 O2s go bad.

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2008 KK Liberty
Inferno Red
Daystar 2" Spacer Lift With SkyJacker Hydro Shocks
JBA Gen 5.5 Upper Control Arms
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post #3 of 4 Old 10-29-2010, 11:46 AM
richd
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When you have a code showing all 4 O2 sensors bad,its not the sensors but a problem with the wiring harness or a bad PCM.
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post #4 of 4 Old 10-29-2010, 02:18 PM
SuperRliBerty
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Quote:
Originally Posted by richd View Post
When you have a code showing all 4 O2 sensors bad,its not the sensors but a problem with the wiring harness or a bad PCM.
Absolutely! I am thinking moisture is the culprit

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