not building boost, am i missing something? Options

[easternpiro1]

Hi all, was wondering if i can get some feedback on something i was missing. here's the story:

recently a friend and I fixed a leak due to stripped thread in the head causing a leak between the exhaust manifold and block.

after rethreading and putting everything back togehter leak is gone BUT now im seeing much lower boost numbers after taking it for a drive.

I own an AEM tru boost controler/gauge and the boost is currently set to stock wastegate pressure (8psi) and consistently held this pressure PRIOR to fixing the exhaust leak.

as of today, my first drive out, my car would not pull past 5psi and touched 6psi BRIEFLY. I double checked my IC piping and adjusted and retightened.

when i went back out the car would only boost up to 4-5 psi adn sometimes as low as 2-3 max.



Im pretty sure its a leak somewhere but it can only be one place as the only IC piping that was removed was the piping coming from the turbo (charge side) i have checked and double checked it.

is there something im missing? any helpful hints would be appreciated! thanks!

[easternpiro1]

quick update, after eyeballing my vacuum lines again, I found a hole about the width of a #2 pencil in a vacuum hose leading to my throttle body from my intake... I cut the hose below the hole and hooked it back up.... still no boost. my car is reading -6 vac when I am on it full throttle.



I also checked my intake manifold and it seems secure. I will take my valve cover off and check from the top as I see traces of oil on my fuel rail and dripping a bit from under my intake manifold.... possibly this oil leak has something to do with it?