I have got a car that already had a B20b swap. There is water spraying out of a hose on the back of of the intake that looks like it goes into what I thought was the IAC. The intake is stock 90 ls and the B20 is supposed to be 2001 JDM. Has anyone ever see this before. Is there supposed to be water running through there IAC? I will get pics up when I can so it might be easier to understand what I am talking about.
find the hose and replace it. its 50/50 mix so no, it should be coolant and water.
if you know its the IACV look up the cleaning process and clean it too. I just did my FIACV too. there is a good youtube vid on that one. easy stuff.