Boost problem, Any thoughts appreciated Options

[malecrod]

I recently installed a new clutch, which I have done numerous times before and ever since, my car won't boost pass 11psi. I had it it set at 15-16psi previously. I double checked and readjusted everything I could possibly think of but it did not help. I don't think this is a boost leak but I may be wrong. So this morning I decided to disconnect the nipple coming from turbo to the actuator to see if boost will creep since the actuator is now disconnected. And still I will only boost to 11psi! So now I'm thinking maybe the wastegate is stuck open? or it this a boost leak? Car boost fine to 11psi with no signs of leak or hesitations. It just wont go pass 11psi regardless of weather I turn boost controller up or down. Any thoughts would be appreciated. I also installed new plugs, wires, dist cap & rotor hoping to solve this but it didn't make any difference.
Thanks

This post has been edited by malecrod: May 8, 2011 - 1:25 PM

[Darkchylde]

It sounds like both of your problems have to do with your waste gate actuators. I just had a similar problem if you have the resources remove the lower line on the actuator, remove your heat shield, apply air to the vacuum line that you just removed watch the area where your waste gate actuator connects to the turbo housing. Check to see if the arm returns on it's own, touch it if you can to see if it has returned to the fully closed position. If when you touch it it springs back home then it is not closing and your bracket is either out of place or bent or your actuator rod got bent during removal or installation. Or you just didn't end up in the same exact place.

Low boost = stuck open
High boost = stuck shut

Also check for waste gate clearance on you down pipe if you have swapped turbos, not all waste gates are the same size.

This post has been edited by Darkchylde: May 13, 2011 - 12:51 PM