Hi, recently purchased a 2014 MK7 GTI, I was fiddling around in the engine bay and decided to unplug the diverter valve for extra dose noises, kept it unplugged and took it for a drive then threw a code, check engine light appeared then plugged it back in when I got home, the check engine light is still on after I took it for another drive with the plug back in the dv. I know I shouldn’t have done it but anyway, how do I get rid of this check engine light, don’t really wanna buy a obd scanner and whatnot so should I take it to my local supercheap auto who offer scanning and code removal services, or is there another way to get rid of this type of code? Obviously the car is in fine mechanical condition with only 60,000kms on the clock so I’m assuming this is the cause of the car throwing a code. Thanks