black 01 B5

i previously posted on the S4 boards to get some opinions about adjusting my fuel with lemmiwinks. i was reviewing some 3rd gear WOT pulls and noticed my actual was always leaner than spec or requested. i then checked fuel trims at part throttle and found 13% add and .6% at idle. as recommend by the S4 boards i checked fuel pressure and it is a solid 4 bar. I pulled the air filter and pressure tested the system and had a slight leak where the PES TIP meets the turbo. pulled the TIP and put a light film or sealer on the flange face and reassembled. repressure tested and all was good to 15 psi. reset ecu and test drove. it showed a slightly lower part throttle add at 11.7%

any recommendations here gentlemen or should i just add fuel with lemmiwinks to correct the fuel trims?

heres the link to previous post<ul><li><a href="https://forums.audiworld.com/s4/msgs/2366058.phtml">previous post on S4 forum</a></li></ul>

Ray Khan

and I believe Mmart's car is as well. I saw a post from Todd@AWE about how around 10% is normal for S4's with larger injectors/turbos. I'm going to go out on a limp and say you're probably ok assuming your car is running code free and your 02 values under load are good as well.

bitjockey (bum)

...for a carburated volkswagen. My APR trims were never this horrible, PC16 is a pig when it comes to fuel and drivability. I've learned to live with it...