Hi I’ve had my 2010 Hyundai i30 for about 6 years now, recently I had an issue with my engine light come on and black smoke come out of my car my car was struggling keeping up the speed limit. Got it looked at, got told it was my EGR valve. So I got a new one put in, and I’m still having the same issue with my car with the speed, and black smoke but my engine light did go off. I’ve had it looked at no one can seem to figure out what’s causing my issue has anyone had the same sort of thing or know what it could be caused from would be much appreciated