i have a b20b motor and my idle drops from 1000 to 200...i alrdy changed my IAC and still acting the same and i sure that i have a vacum leak but i dont know where its comming from...but does my car have FTIV?? help me on this guys thnx...

 

there aren't really that many vacuum lines on the motor check to see that your intake manifold isn't leaking anywhere (gasket) and just feel out your vacuum hoses if there is a hole you should feel the air . hope this helps.also if your running bigger than stock injectors check your fuel pressure.