ok so i got a 2001 honda accord sedan ex automatic and it has a low idle when parked red light or stop sign,etc idles under 1K but when started stays on 1k and drops to like 500-700rpm anyone can help me on what might be the problem thanks

 

750 RPM in drive holding the brake is about normal, you might want to pull the IACV off and clean the screen out with some Berrymans B-12.

Also clean around the throttle plate area, with a toothbrush and Berrymans.

 

thanks i did what you said works great