HolyCrapItsFast
Drinks beer!
I think you should worry about the clutch later and focus on your loss of power first. If you don't have a Tactrix or an AP then you really can't datalog. Perform the boost leak test as prescribed and we will take it from there. In the mean time you should reset your ECU and see if any of your power comes back. If it does come back, then that means the ECU previously went into fail-safe mode and that means significant problems.
To reset the ECU, remove the negative battery terminal and step on the brake to bleed any residual power. Reapply the negative terminal after 5 minutes.
To reset the ECU, remove the negative battery terminal and step on the brake to bleed any residual power. Reapply the negative terminal after 5 minutes.