where exactly are o2 sensors located on a b4...need to change them today.
05-28-2004, 07:23 AM
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no pics but the front 2 are located on each of the exhaust ...
headers the one on pass. side is below the air hose, the one on drivers side is below the ABS crap, the other two are underneath the car mounted directly on top of the exhaust pipe after your cat. convt's
05-28-2004, 07:55 AM
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here is a pic of the pass one, if i change this one and hte one under the ABS, should it solve...
<center><img src="http://pictureposter.audiworld.com/68878/o2.jpg"></center><p>my idle problem. here is a bad pic of hte pass one but this is it right. What did u use to open it?
sorry ofr the pic quality
sorry ofr the pic quality
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05-28-2004, 08:01 AM
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there is a special tool to remove them (i have it), but it can be done without it (search)..
all you have to do is unplug the sensor and unscrew it, install the new one and plug it in, prolly have to cut and reinstall some wire ties