sorry about the wait, 1st thing to try and get done is plug in a scan tool to read off the stored fault code that's turning on the check engine light
if you can describe to me how the car is driving with this fault I'll try to help furhter
if the car is driving OK with no lack of power then you should be OK to carry on driving it normally
check the connections to the EGR valve, if either the vacuum pipe of electrical connection are damaged / corroded then the EGR can be on all time which certainly will hurt performance. Its also possible that its a fault with the EGR valve so its worth removing the valve and cleaning it out with brake cleaner, if it looks particularly clogged then replace it.
do you still need help?
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