Hello I have a 2000 Mitsubishi eclipse rs 2.4L and I am having low idling problems. It runs good in the beginning but once it is warm just idles really low like it wants to die. I have replaced the egr valve and the vacumn solinoid, new spark plugs, new iac, new tps and new valve cover gasket. Just installed new header and exhaust system also and was thinking maybe my cat was causing it but still idles low. Cleaned the throttle body and cleaned the maf also but still no change. No check engine light on I am running out of ideas