Originally Posted by
brickie
The leak (very small) is the pump its self and yes you have to close the IPR to test the system.If you have a parts store near by take the ICP sensor and get a male quick coupler to go in the icp port, that will be the fastest way to pressurize the system.
My icp sensor is under the turbo. To make room to get shop air connected through that port, the turbo, pedestal, and maybe even the intake may have to come out. That's why I had hoped pressurizing the system somehow through the oil rail under the valve cover would suffice.
So... oil rail, or icp port?