my vauxhall vectra 1.9cdti had slight loss of power at low acceleration then power kicked in at 2000 revs. having looked at the engine i noticed the swirl flap control rod had came off. so bought a repair kit and refitted the bar and flaps now work correctly. i then thought to take car for a run which now seems to set off ok at low revs but now has loss of power at high revs.

gazza1472, May 2013