I have a b16 in my 94 coupe and sometimes when i stop at a light or stop sign the idle drops pretty low. especially when im holding the brake. when i start it and it just sits and idles its fine only when i drive for a while then stop. Any idea what this could be?

 

My civic does that too. Idles around 1.2k-1.5k on start up then drops to 100-200 after driving awhile. It seems fine I thought it was normal.

 

Bump! Same thing with the brake also when I press in the clutch the idle will drop too.