Audi s3 amk
took my car for first dyno run today as i been having a strange problem almost as if it was losing boost then gaining boost and loosing it again.
Can be driving down the dual carriage way and when putting your foot down you can feel it kick in and out several times before it will eventually let you go up the rev range. On the 4 wheel drive rolling road you could see where it was cutting in and out. Its getting full power for a standard s3 with 216.7bhp at the flywheel.
When the fuse was taken out for the haldex and rolling road set up for 2wd it was perfectly fine straight up the rev range
has anyone come across this or anybody got any ideas???