I have done a search for this but have not found anything very usefull. My boost pattern is 5-2-6 no matter what I do. I can change the boost controller with no response, I have put the stock restictor pills and lines back in and still the same. Vacume chamber is fine, bov's good, check valves good, pressure chamber good, double throttle good, and all turbo actuators check out fine. When I replaced the motor about 10,000 miles ago I ziptied all vacume lines but two on top and on minor inpection of the rats nest all looks good. Car worked good at 11-12 psi untill recently and now I am pulling my hair out! Any suggestions would be much appreciated. (At least these cars are easier to take apart than a 3Z!)

 

i have a set of stock twins for sale if this is your problem i want 400 thats shipped to your door just e mail me you might want to check the this sit under boost leak and then theres a guy that has a like gives you alll your break down on what the leak might be good luck if you need turbos tonyttt@comcast.net

 

If your double throttle control isn't working, you can't make more than 5-6 psi. Have you looked into that at all?