Does anyone know how to adjust the idle on an 83 Honda Accord? Low miles, runs great now that I cleaned up all her fluids. Had a problem with her idling low. I looked everywhere to bring up the RPM's, but could not find the adjustment screw. Ended up cleaning all the moving parts and the problem went away,but still curious where the adjustment screw is. Also, there is small white cup that is mounted to the bottom of the intake manifold that has 2 small tubes and one large tube coming off the cylinder cover. Is this some kind of pre-PCV? It was blocked up with gunk and the large hose was cracked. Cleared all that up and was wondering what it was called.