Good evening guys. I recently bought a 1998 Accord EX 3.0 V6 auto trans from the auction and I’m having trouble getting the idle to level out. We cleaned and replaced the idle air control valve, as well as cleaned the throttle body anf the EGR. We are still having the same issue for the most part. After cleaning it, the idle did level out and the computer popped a P0505. AA soon as I reset this code, the idle started right back. It only surges bad in park at idle. When in drive, it idles fine. Anyone have any other suggestions?