I just remember someone on the CRX board having the same problem..........
http://crx.honda-perf.org/forums/
ALOT more knowledge there.

"Elan7eOwner" <mr_gadget_guyREMOVETHIS@yahoo.com> wrote in message
news:c19qnp$8vk$1@murdoch.acc.Virginia.EDU...
> Can you tell me what its called, or a part number or its purpose or any
> other details? And will I be able to change it myself?
>
>
> "Mista Bone" <mistab0ne@nospam.net> wrote in message
> news:gbAZb.3623$6t5.1884@fe3.columbus.rr.com...
> > That switch is the drain, replace it. I have one if needed.
> >
>
>