is there a fuse for my o2 sensor - JeepForum.com
 
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post #1 of 7 Old 05-31-2009, 09:54 PM Thread Starter
jayashjeep
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is there a fuse for my o2 sensor

somone said i had a fuse for my o2 sensor do i its testing a bad o2 sensor and i just replaced it any hints thanks for any comments.


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post #2 of 7 Old 05-31-2009, 11:50 PM
XJohnnyC
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There is no fuse for the O2 sensor.
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post #3 of 7 Old 06-01-2009, 12:18 AM
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Did you reset the code after you installed the new 02?

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post #4 of 7 Old 06-01-2009, 09:01 AM
Ed Rico
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Quote:
Originally Posted by jayashjeep View Post
somone said i had a fuse for my o2 sensor do i its testing a bad o2 sensor and i just replaced it any hints thanks for any comments.
There is a fuse in the underhood PDC that supplies the heater circuits for both front and rear O2 sensors in parallel. If the fuse is out, it can affect the ability to get up to and maintain operating temp for the sensors, which can cause problems with staying in closed loop.

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post #5 of 7 Old 06-01-2009, 09:04 AM Thread Starter
jayashjeep
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i did not reset the code it turnede off its self after i replaced it then came back on
im going to chreck the pdc fuse rate now ill let you know what happen thanks alot everyone im really getting tired of my check engine light on.

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post #6 of 7 Old 06-01-2009, 09:14 AM Thread Starter
jayashjeep
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where is the pdc fuse located cause i dont see one under the hood? help please

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post #7 of 7 Old 06-01-2009, 10:42 AM
CJ7-Tim
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The PDC is the Power Distribution Center. It is the black plastic box next to the battery. The fuses are not labeled, just check them all. I am pretty sure that there is no O2 sensor fuse in the fuse box in the passenger foot well area.

Check your Owners Manual or Factory Service Manual for more info. If you don't have an OM or an FSM, you should get one, try eBay or the Junkyard.

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