I have a Tial BOV and I connected the vac line to the Intake manifold. Just like Greddy said to do. When I did that the BOV is slightly open @ idle. When I step on the gas it closes, but when the RPMS come back to idle the car struggles to stay started by pulsing between 400rpm to 800rpm. I disconnected the vac that goes to the fire wall and I lost my brakes in the drive way. The break pedal went stiff. Before I lost the breaks it worked but I still had a small compressor surge and then the BOV worked. What would cause that problem?(a leak maybe??) I tried reseting the ECU and nothing the same thing happened when I reconnected the vac line to the fire wall.
I am wondering if anyone knows anything that I can do to fix this???? Thank you

Jupe

 

Try posting in here, its the forced induction part of Honda-Tech

https://honda-tech.com/zeroforum/16

 

Try a different vacuum line.

 

I only know of one vac line before the throttle body. Where can I find another one at?