Ok I checked the y-pipe to see if there were any holes in it. (no) I Looked for a cracked vaccum lines (nope all in good shape)and none kinked. Now it makes me wonder if the blow off valve is going south on me. I saw the thread on how to check to see if its working correctly and I dont have the tools for it. Now I was wondering if I switched the two blow off valves if that would tell me what I need to know. So the primary would be at 7 and the secondary would be at 14. Would that work? or is there somthing else Im missing? Mods are on the sig.

 

What exactly is your boost pattern? 10-8-7?

Check to see if your prespool and wastegate solenoids are switched around.

If they're switched around, they could give you a 10-6-6 or 10-7-7 pattern. My boost was at around 10-6-6, and when I switched them around, I was getting good boost again

 

Pattern is 14-7-7
Ill check that soleniods again. Dont really think thats it because I never touched them before I had the problem.

any more ideas fellas

 

hmmm.......

 

Boost duty selenoid or pressure sensor on ProfecB going bad?

 

Make sure the vacuum hoses going from the control solenoids to the actuators (WG and Precontrol) are not leaking, this will give you the described pattern.

 

Had the same problem, and the waste gate and pre-control solenoids were plugged in backwards. One solenoid has a white dot on it and so does one of the connectors, make sure they are plugged into each other..otherwise I couldnt tell you.. good luck.

 

Now that I played with the car a bit I hear air escaping when the secondary kicks in.....humm