hi I got a 2003 XR6t 4 speed auto, has rapid cooler and generic 10pound flash tune Give it to it in first its fine hold full boost and turns the tyres Have it in 2nd at about 60 and stand on it boost comes on holds full boost for a bit the just dies off to like 5 pound and goes no where, try's to boost and sound like its compresser surging have it in 3nd and stand on it holds full boost sweet and goes good no problems What is going on? Its fine in 1st and 3rd sh*t house in 2nd. Any ideas?