Quick Intake leak test question

[schwag9AWD]

I'm doing a boost leak test tomorrow and I already have the tester with a valve to hook up to an air hose regulated at 20 psi, and I read the VFAQ on the test.
One thing that I've heard a lot of people do is cap off the UICP after the throttle body.
Should I cap it off first and then reconnect to test the intake to head and injector seals, or just leave it as is and test the entire system first?
Also, what hose on the MBC do I plug off that leaks a lot?
Thanks

 

[justin0469]

i dont know about the MBC part of this but i just recently made and used the leak tester and i just left everything hooked up. i didnt cap off anything.