weird idle
 

I have a 1990 accord coupe with no modifications. When I stop at a light or anywhere for that matter, the engine speed comes down very low. Sometimes down to 300rpm. After a few seconds, the idle comes back up to normal 750 rpm. This happens every time I lift my foot of the accelerator and let the rpm's drop. My car is manual.

I cleaned out the egr passage in the intake manifold but the problem is still there.

Any thoughts on this subject would be appreciated.

sounds like pcv valve hose....

Would anyone have a diagram of where the pcv valve and pcv valve hose are located?

they go from somewhere in the middle of the valve cover to the air plenum.

yea its the hose that comes out of the valve cover right abouve where it says "16" on the valve cover... lol i hope that works... but thats where i remember it being in your car... you do have the 16 valve engine rite???