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  #121  
Old April 23rd, 2018, 19:12
Royal Nonesuch Royal Nonesuch is offline
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Re: Testing Jeep O2, Oxygen sensors

Quote:
Originally Posted by randy57 View Post
What were your fuel trims?
Did it loop open/closed back and forth on cold start?
Wish I could find a new o2 sensor that didn't have the pre-heating element.
Fuel trims were OK in the beginning, but slowly started to creep high. As it failed, I noted it would open/close on cold but eventually just stuck open.
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  #122  
Old May 1st, 2018, 16:47
randy57 randy57 is offline
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Re: Testing Jeep O2, Oxygen sensors

I put in a sensor found on 89 in the junk yard. Out of the three one showed ohms but was not 5-7.

It does not cause a battery draw. But after installing it my A/C clutch started working.

I will do the tests as suggested and post the results.

Also bought one another on ebay, (hopefully the image of it can be seen), looked identical to my original one. It too caused a parasitic draw. I guess you cant tell by looking at them if they will work or not.
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  #123  
Old May 1st, 2018, 16:49
randy57 randy57 is offline
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Re: Testing Jeep O2, Oxygen sensors

Image didnt load. here is the url for the one I ppurchased. https://www.ebay.com/itm/132141445881
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