I pulled out the IACV on my 1.6K last night to clean it...( tickover was fast...).
Just to find out how / if it was working, I pushed the piston into the housing. It didn't return, so I pulled it back out.......too hard...the piston and slotted pin/screw came right out....opps! It went back together okay, but there was some sealant/soft compound on the pin...presumeably to hold it into the motor ( assume it's some sort of electric step motor affair ).
Problem now is can I trust the IAVC.....Can the piston come out into the plenium and enter the engine?
I have re-installed it, and the engine appears to run fine...but thinking about the above, should it be replaced??