do i need this?
 

i have been having some problems with my idle air control valve. i think that i might have it fixed but i was wondering do i really need it or can i just put a block off plate there. what good or bad things would happen if i got rid of it?

Bad idle...:D

what do you meen by bad idle? the reason i am asking is that there are other ways that the idle is controlled not just that valve. also if it helps (because it is electrically controlled) i have a pfc.

The valve is used by the computer to maintain the 750rpm idle. Don't know what happens with the PFC though. I think you still need the valve to maintain good idle under various conditions (cold, warm, etc).
-MP

Should note the stock ECU also uses this air passage to reduce afterburn on closed throttle (i.e. backfiring). Ya need it.