bad boost reading?

[TurboLegacy]

i have a morgie fuel cut defender tee-d in near the pressure exchange solenoid. i also wanted to get a better boost reading, so i tee-d the boost gauge line close to to the intake nipple . i put the boost gauge line on the same line that my morgie fcd is on. where it is connected allows me to read vacuum and boost, but the boost doesnt seem correct. previously, i had the boost gauge attached between the outlet pipe of my intercooler and my throttle body. while hooked up there, at 13psi exactly there would be fuel cut. before i moved the boost gauge line i was running 15psi and when i moved it, it only reads 9psi. is there a better place to put my boost gauge so i know exactly what psi im running? pictures?

[ultrasonic]

Why don't you move it back to where it was? It seems that it was giving pretty accurate readings there.

[vrg3]

Maybe you should put a restrictor in the vacuum line going to the FCD and pressure sensor, to help keep pressure readings at your gauge tapping point correct.

[-K-]

You want it after the TB. If the TB isn't opened all the way with a high engine load you would be getting a higher pressure readind. I would trust the readind now more than the old one. Also there might be less pressure in the intake runners but I wouldn't think that much. Try uninstalling the FCD and see where boost cut is.