Can anyone help! i have a 1999 s3 which has been playling up for a while. iv had all the usall problems such as split hoses ect. i put a forge diverter valve on it, new coil packs new n75 valve new maf also had a decat fitted a while back. but now its running reall ritch,( i can tell from the mpg reading also stinks!) also the power isnt there anymore its as if its flooding itsself because if you dive it gently its ok but as soon as you put your toe down more than a 3rd it just seens to die! at first thought it was the maf so disconnected that, still no joy. also there are no falt codes present. then took it to jabba sport, they looked for two hours and still no joy!! forgot to mention that sometimes it has a spurt of power and boosts to about 1.5 bar and really goes, but other times it will only boost to bout 0.7 and then really struggles. anyone got any suggestions??? cheers p.s also jabbasport said that the maf was running about 11.5 % i no thats high but when they put a different one in it was the same.