Loss of power issue

Rebel

TCG Elite Member
Dec 15, 2008
2,827
554
Reno, NV
Haven't been on here in a while, life in the mountains taking up all my free time.

Yesterday driving home, I experienced some issues on my commute. My wrx had trouble accelerating, and I was hearing a good amount of atmospheric release coming from somewhere between my intake and turbo I assume. Driving under low load, I didn't seem to have too much issue to an extent but my boost does max at about 9 psi then drops to 4-6. RPMs also max out at about 3700. I can't reliably hold highway speeds.

I tried spraying soapy water to find any leaks with no luck. Any other suggestions? I'm limited on my tools but would like to avoid taking it in if I have to. I feel like it's probably a loose coupling or something simple.
 
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