miss under load
my car has a slight miss at idle. comes and goes. when i turn on the a/c the miss is more pronounced. does that usually point you in one direction as to what the issue is? car has new plugs, intake manifold gaskets, pcv system seems fine. no loose fittings or hoses. i get a occasional egr code but that might be due to my egr valve sticking open on occasion. i have taken it off and checked the pintle and seems ok. would hate to think this is due to a sticky egr valve. don't really want to replace that. but i could.