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  #25  
Old 08-11-2014, 02:18 PM
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  #26  
Old 08-11-2014, 05:18 PM
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Re: Help!!!!

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Originally Posted by grandchero View Post
Just got the problem fixed. It was between the cat being clogged or the upstream sensor. Any ideas of how this could of occured? Thanks for all the help.
Not sure what happened, but a not well working O2 sensor could cause a double digit positive fuel trim. The extra amount of fuel will be burnt of in the cat and can melt the cat down. Not sure if the cat then will restrict the flow.
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