the 30v has 2 cats. the 02 sensors are screwed right into the cats. those 2 codes are saying both of the 02 sensors in both cats are bad. try taking them out and cleaning them with intake cleaner. if that doesn't do it, replace them. autozone has a bosch 02 sensor for our cars that is like 80 bux but you just need to splice the wires. the colors are different but i can take a look at mine when you to do yours. at least that how the wires are for the 01, the passats have the same color coded wires as the bosch sensors.

 

wow that was wicked helpful thank you! i have another question seperate from this but i dont want to cluster up the forums so ill just ask here for a quick answer, my car seems kinda slow for 200hp and i have just for mods a 2.5 inch cat back and an intake, what should my quarter mile times be and what kind of cars should i be able to beat?

 

between 16-17 seconds. it's slow because of the awd and the weight of the car. don't worry you can get them in the corners easily

 

yeah but i mainly drag race 190hp at 16-17 seconds, thats horrrible. my 88hp mx3 did better than that. my tiburon gt had 171hp, same exact weight and i ran 15.4

 

Haha, you can't find one single post containing the word "drag race" or "quarter mile" on an EU A4 forum!

 

EU? where can i find one?

 

I had the exact same codes for my 97 12v except four times. Doing my diagnosis I was able to figure out that it was fuse 29. It enables the heater circuit which explains why both are reading the same thing. I would expect both to go bad at the same time. It would be worth checking and replacing the fuses related to your exaust system and see if that works. good luck

 

my fuse box doesnt have a diagram though i have no idea which fuse that is? help.

 

anyone? where can i get the fuse diagram?

 

bump....this is the slowest forums ive ever seen lol.