I have a Vauxhall Astra 2.0 Turbo Petrol 2005 Design.
When I accelerate a little harder than normal between 2500 & 300 rpm the car sometimes judders/struggles and then the engine emissions light comes on. If I go above 3000 rpm and then accelerate there is no problem.
The car runs fine apart from doing this and I have found that it does not happen if the engine is cool.
Does anyone have any ideas what the issue could be?