O2 sensers
#3
my car has been throwing the O2 sensor code too, however i have found a tutorial on how to change them, personally i have attempted it yet cause i want to figure out the prob in my SAI system first but here it is, good luck let me know how it went for you
http://forums.audiworld.com/showthread.php?t=2775139
http://forums.audiworld.com/showthread.php?t=2775139
#4
Rears are no big deal. Primaries are a pain in the ***. When I did them for a guy, it was a matter of using swivels and 2-3' of extensions, carving up my arms on a ton of sharp brackets, and reaching to hold parts with fingertips buried way in under and behind the engine. To get the driver side sensor out, I had to attack from the passenger side, and vice versa. Took some time for sure and was a pain in the *** but it's doable.
#5
it's really not too bad... have a long extension, special tool for o2 sensor(crows foot type works best) and ur good to go...passenger side only takes like 5 mins! ....other side is a bit harder to access but it's really not a big deal...same with the egt's