u get 400miles a tank ? WOW!!

I have 98 1.8TQ I got about little over 300miles... What do you have myaudia4 ?

 

I have 98 1.8TQ same thing you have. This is majority highway miles, few local. I just filled up today when my gas sign popped up I had 380 miles already. so what do u think I have turbo problem?

 

I dont know about you but I start to think that I have some problems

Why dont u get a Boost Gauge. Anyway it is something u will buy soon or later. maybe it is time to buy. Instead of try to fix something that u are not sure and spending your money, spend it for somehthing u need. Also you can see your boost level and you can understand if there is a leak...

it is about $85 gauge+pod+parts inc...
http://www.ecstuning.com

 

I had this problem in february with that same code. there are two vacuum lines that i replaced and the problem has been gone ever since. it is the two hoses wrapped in cloth. one is a short one that goes from the intake manifold to the fpr, the other i believe goes from the manifild to the Diverter Valve. They were both cracked up like a junkie. replaced them both, unplugged the battery to reset the ecu, after about a day, she was back to normal. FYI - if you turn the radio off and pull the radio fuse before you pull the battery, it shouldn't (key word "shouldn't") ask you for a code when you plug the battery back in and then the fuse.