Hi, I posted a couple of day's ago. I have a 2005 Accord 2.4 liter. At the store it did not want to start. I got it going after 4 struggling attempts. It would not idle, at each traffic light I had to throw it in neutral and rev it to keep it running. No engine light came on. The car has 221,000 trouble free miles on it. I had a fuel pump which I ordered a while back just in case. I changed it thinking that could have been the issue, No deal, it would  start and barely run. After about 10 minutes of spitting and sputtering the engine light on. I put my cheap little hand held computer on it and code P0506 came up low idle rpm. Took the idle air control valve off which is bolted underneath the throttle body. It was full of crap used some throttle cleaner, now she idles perfect. No stress now.