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]

If your down pipe is anything like mine, you have an O2 sensor on the top of the pipe:

you don't have to remove the pipe, you can remove the O2 sensor and look into the hole with a flashlight to see if the gate is still open. Also you can just reach behind the flange and feel the waste gate arm, try to just tap or push it back toward the actuator if it pops shut then you definitely are having space/placement issues. If this is your problem recheck your actuator arm measurement against this:
http://www.6gc.net/forums/index.php?showtopic=40547&st=0

From there if your measurement is correct, make a new plate if the old is flimsy. If the measurement is off re-bend. If the measurement is not off, then you will either have to find a way to move the bracket that your actuator is mounted to. Or bend that bracket in such a way that you do not alter the travel of the actuator rod too drastically. Hope this has been helpful, I just happened to luck upon this right after I was having a similar issue.

I just swapped my CT 26 for a CT 20B, after the install was said and done I got in ready to boost my @$$ of and was only getting like 5 psi. I went on to check everything over and had a couple of loose intake hose clamps but that was all. So I hooked my actuator up to my airbrush compressor and activated it, when I released the load and looked through my O2 bung I noticed that the gate itself was not returning fully but the actuator rod was. Thusly too little distance from the actuator to the gate arm. Long story short I re-bent the bracket a little took her for a run @ 50% on the boost controller and viola 10-11 psi.

I am no expert, and you may have other issues, I am just offering insight based on a recent experience so please make sure to check all other connections as well, and check everything that I have described to have come to my diagnosis. I hope this is your only issue and that the information helped, I have received much help and support on these forums since I got my SWAPPED Celica. I hope to return the favor at least as many times as it has been afforded to me.

This post has been edited by Darkchylde: May 13, 2011 - 12:53 PM