2002 audi a4 1.8T oxygen sensor
#2
Assuming your talking about the upstream one it is pretty simple. Going to need an 02 socket or a wrench (7/8''s). But on passenger side you will see the headers and about a ft back by the cat you will see the 02 sensor. Remove and replace. But I just did this on mine and got the bosch universal 02 sensor for $70 and removed the old and had the new one wired up and put back in 20-25 min max and was very simple.
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drft1
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07-05-2010 12:18 PM
spiney
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07-15-2009 10:18 AM