First thing in the morning it will start, but then not rev up! Erratic idle - sounds like a tractor! No engine warning lights! Even when the engine heats up - no power - can barely get it moving.

However, switch it off and re-start, and she goes like Boeing immediately - all normal!
What can this be - MAP, MAP, SCV ?? Anybody had a similar experience? I am concerned that it does not give a fault at all!
Thanks
Johan