HI i have been dealing with this problem since i have gotten the car... i blew the motor up a year ago and i rebuilt and replaced it. the cause of failure was lean running. it melted a piston and i replaced all the parts i can.. i just don't know where to turn next i don't have the code for the lean running code right now but it is lean running bank 1 for sure. i've replaced the fuel filter, MAF, Spark plugs and i am running 2.0t coils and conversion kit from 3zero3 motorsports. the car never misses a beat when its running... smooth as ever and it reads 17 psi boost. i don't know what could be causing the car to overboost but there isn't a code for overboosting and it runs very well. i'm just afraid i'm going to blow up the engine for a second time... any suggestions will help guys its really mind boggling

 

Are you running a chip? You shouldn't be hitting anywhere close to 17psi without one. This might be obvious but have you replaced your first oxygen sensor? If you have, I would take out all your fuel injectors and clean them really well, as well as replacing the tiny filters in them.

 

his signature says he's running an APR chip, so 17 is about right.

 

yes i have o2 sensor ordered... and no this one is a differant audi than in my sig... i hope this fixes it ive rebuilt my whole motor because of lean running and replaced a billion and one sencers so far and am just fed up of dealing with this for over a year now