MORE BORING SMOG CRAP - Forums at Modded Mustangs
 
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post #1 of 5 Old January 25th, 2006, 11:23 PM Thread Starter
 
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MORE BORING SMOG CRAP

OK, FOR THE LIFE OF ME I CANT FIND MY O2 SENSOR!!!! I KNOW THAT MAKES ME AN IDIOT, BUT CAN SOMEONE PLEASE TELL ME WHERE I AM SUPPOSED TO BE LOOKING??? I HAVE A '89 GT WITH A '94 COBRA CONVERSION.

OH, AND ON A SIDE NOTE, DOES ANY ONE KNOW WHAT THE HELL WOULD BE WELDED INTO THE SIDE OF MY SECOND CATS WITH THE OPPOSITE SIDE ENDING JUST ABOVE MY HEADERS AND PLUGGED OFF??? I DONT KNOW WHAT THE **** TO MAKE OF IT.
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post #2 of 5 Old January 26th, 2006, 12:12 AM
 
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you should have 4 oxygen sensors. the two closest to the headers are a metering sensor that check the pressure of the exhaust. the rear two are actually in the 2nd set of catalytic converters (screwed into them) and measure the emissions.
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post #3 of 5 Old January 26th, 2006, 01:00 AM
 
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If i am not mistaken, 95 a newer have 4 02' sensors on them. You said yours was an 89'. You should have 2 sensors just before the cats. (stock h-pipes usually have 4 cats and 2 muffs. on those years. 2 sensors just before the cats. right after the manifold or headers connect to the cat h- pipe. the just screw into the side of the exhaust pipe. (least thats what i have seen in my mustang work)
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post #4 of 5 Old January 26th, 2006, 01:04 AM
 
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check that out thats what i mean, the only oxygen sensors are at the bottom of this pic. towards the beginning of these pipes, those are 83 to 92 stock Mustang h-pipes. 4 cats 2 muffs come after them. [/url]
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post #5 of 5 Old January 26th, 2006, 01:04 AM
 
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can actually see the 02 hole
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