OK, just spent more time driving it (my fiancee was driving the first time, so I couldn't get a good idea of what it is doing). It goes to 5 psi for a couple seconds then drops to 0 and stays there. I am thinking the exhaust flapper isn't opening for the rear turbo and once the butterfly in the outlet pipe (y pipe) opens, it is just pushing all the air right out the rear turbo. Does this make sense? Where should I look from here? Thanks again.
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