Last weekend my car threw a CEL, so I found out a I had a loose hose on the EGR valve. Popped that back on and cleared the code. Well ever since my idle has been really weird and when warm will go to 1400 and then settle at a 1000. I believe my idle is set at 853-900rpms. Car seems to still be performing fine, but my friend did a log at idle and hit the the 2 step and was hitting 20+ counts of knock as well. Any advice is appreciated!