Yep mine had that problem......changed the actuator....its warning you....dont leave it too long.You may find if you keep it under 2000 revs the orange light doesnt come on.If you put your foot down the turbo kicks in (green light),keep it down...orange light comes on and you loose 'oomph' .Turn engine off. Start again ...ok till you do the above...Dont wait till it breaks down..could end up costing a packet !!
Easy job to do.
and welcome
(ps. It's a 15 min job!)