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02 sensor help. #1088830 10/27/04 12:28 PM
Joined: Jul 2004 Posts: 99 Pennsylvania M Moloko OP CEG\'er
OP Moloko CEG\'er M Joined: Jul 2004 Posts: 99 Pennsylvania	So my CEL came on again last week. I finally checked it yesterday, and its showing that the 02 sensor I just changed 2 months ago is bad again. It says "02 sensor check slow/no response". What are the chances the sensor is bad, or is there another problem? Its also throwing a P1151 and its kinda misfiring at idle. 1998 Contour SE 2.5L Duratec DOHC 5spd. "Who needs a working IMRC? - I don't." 1968 Chevelle 300 Deluxe 1994 GMC Yukon SLE 1972 Plymouth Roadrunner - restoring for a friend.

Re: 02 sensor help. #1088831 10/27/04 12:31 PM
Joined: Jul 2000 Posts: 2,382 Kansas City,MO,USA,Earth, Terr... N Nate'sTour Hard-core CEG\'er
Nate'sTour Hard-core CEG\'er N Joined: Jul 2000 Posts: 2,382 Kansas City,MO,USA,Earth, Terr...	Not sure, but my mechanic told me long ago when he changed mine to change them both at the same time. One goes they both go. I doubt that's entirely it, but how old is the other one? "Fear is the little death." Muadib.

Re: 02 sensor help. #1088832 10/27/04 08:37 PM
Joined: Jul 2004 Posts: 99 Pennsylvania M Moloko OP CEG\'er
OP Moloko CEG\'er M Joined: Jul 2004 Posts: 99 Pennsylvania	3 of the 4 were changed. But its saying one I already changed is the one thats bad. 1998 Contour SE 2.5L Duratec DOHC 5spd. "Who needs a working IMRC? - I don't." 1968 Chevelle 300 Deluxe 1994 GMC Yukon SLE 1972 Plymouth Roadrunner - restoring for a friend.

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