This is topic o2 heater problem in forum Tech Talk at Northern California Ford Owners  .


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Posted by Mean2001GT (Member # 1750) on :
 
i've thrown a couple of codes in my 2001 mustang gt for 02 heaters on both upstream sensors. i replaced them and still have the code. i've erased them and they come right back, so i'm thinking that i have a problem in the connection somewhere. where would be a common place this could occur? what color wire am i looking for a problem in? and what should the resistance of this circuit be? thanks for the help.
 

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