alright, so in order to check if my iac valve was working, i got the car warmed up, took the intake off, and covered up the hole on my TB for the valve, now the car is supposed to die or almost.... correct? but it went down to about 600 rpm.. is that a bad iac valve??? i could really use some help with this, if anyone could give me a diagnosis, my ears are open, thanks

 

Year? Model? Please move a little to the left. I can't see your car.

For many Hondas the idle will go down to 450 or 500, almost dieing out, when you unplug the electrical plug from the IACV.