Hello, I've been having a strange issue on my S3 8L for quite some time now. After I change gears, say from 2nd to 3rd on WOT at about 5k rpm, when I accelerate again the car will boost fine (14 psi stock) but it sputters and hesitate to accelerate at all, even on part throttle or full throttle. I believe it might be fuel related, however I'm not completely sure. Car starts fine however. It makes no difference with full, medium or empty tank. What has already been checked - VCDS shows no codes - New Fuel Pump (Deatsch Werks uprated one, it was replaced because the car was struggling to start about a year ago) - New Fuel Filter (yes, it is fitted the right way) - Cleaned injectors with ultrasound - New MAF I am still to replace the silicon hose that comes from the turbo to the charge pipe because it's in poor condition and sometimes it comes a little bit off causing a slight boost leak, but I don't think this would be the problem. What I feel is that fuel might be returning from the fuel rail and then the car has no fuel pressure left to cope with acceleration again, specially under boost. Might be FPR? Any thoughts would be appreciated.