Hello, i have Seat Leon Cupra stage 1 about 300hp… Car have forge intake forge blow off forge oil catch can custom downpipe. Turbo is working good. So car have a problem with fault P2261, sometimes when its everthing okay with car i have normal boost and whistle of blow off but when in a moment car lose boost and whistle when push the throttle like doesent have a power. Can someone tell me what can be this problem?
