[rudypoochris]

No, the timing was being pulled from way too much water all at once. I will diagram the system tonight, but basically the check valve kept tank pressure at peak boost but the solenoid would open at 8psi. At this point in time water pressure would be way higher than air pressure and likely the turbos sucked up a lot of unatomized water. As to why that caused timing to be pulled, I don't know, but it did.

The 335i is a map based system. I am not concerned about the miniscule boost leak to be honest. IAT rising does have anything to do with the boost leak. It only rises with meth on, but even with meth off the boost leak is there.

I am trying to turn down the flow with no reported success (sensor shows pretty much the same flow with the port almost completely closed. I am diagnosing this now since I have sensor issues. What do you guys use for flow control valves?