[gatos]

What may be a better idea, is to remove the throttle body and give it a good clean. You will most probably find a lot of coking up in there. Ideally also remove the plastic inlet manifold and the edge and get rid of the tonnes of coking up that will most probably be in there. Not the easiest of jobs, but at least this way, you can get rid of most of the coking. It will be much more effective than any type of cleaner, as they will mostly clean the engine internals and not the air intake bits (throttle body/inlet manifold). I have never ever seen a non blocked egr on a gdi by the way. It's a narrow channel that be ds and it's very very easy for coking up to settle in there. Once all of those are cleaned, trashing the car a bit will help so it doesn't coke up as much in the future