Fuel Cut??

[xi Talon ix]

I have a 1990 Talon TSI AWD and I just installed a manual boost controller. I removed the boost control selenoid when I installed the controller. Now when I go down the road in any gear but first, I will put it to the floor and at 4k RPM's it is almost like a rev limiter. I thought it was fuel cut but was just informed that it might not be. I have the boost controller at the lowest it can possibly go now. And just today I put the boost control selenoid back on to see if it would still do it and it does. I need help guys, I have no high end power. Thanks in advance.

 

[dareisstupid]

Check for a boost leak. And make sure all the vacuum lines are hooked up to the wastegate. Maybe it is stuck.