Liemoanh

The only way my turbos come on is if I floor it and the rmp goes past 4500 to red line. Than I shift to next gear than the turbos come on.It builds slowly to 8-10 psi, It feels very strong. It feels as if both are coming in at once. If I shift to the next gear, and let it drop down past 3000 rpm and than floor it, It builds boost very fast to about 12 psi, till about 5000 rpm then drops to 5 psi. What the hell is going on. Also I think I might have routed the hose thats goes to the back of the TCA wrong. Also the hose that goes to the back of the charge relief on top of the rack. Does anyone know whats going on here. Does anyone know where these hoses are supposed to hook up. Thanks everyone for your help. Oh yeah, if I floor it in any gear, primary does not come on. Only if I do what I stated about the both turbos coming on. Thank you very much. This is really stessing me out.

7-sins

That sounds very odd, like some hoses are in the wrong places. Just go over the vacuum diagram and see if you can notice anything. Also check all the C clips on the actuators. It sounds very odd the primary isn't comming on, the only way a primary wouldn't be getting boost is because a leak between the turbos and the motor, thus making it the same way for the secondary.

Liemoanh

Yeah I've checked everything. What exactly is the C-clip. I took the car to a local rotary shop, and the only thing they could come up with is that I needed to change my whole wiring harness. I think it's BS. If my primary ain't coming on like it's supposes to. Would I be able to do the poor-mans non-seq setup. Maybe this could help me. What do you guys think.

Liemoanh

I've also look thought the hose diagram, and I can't see where the the hose that comes off the back of the TCA and goes up to the top of the rack, but to which nipple in the rack. Also the hose the comes off the back of the Charge relief on top of the rack. Where does that go. The diagram does not show where the back of the hoses go. Thanks everyone

skunks

Wow, thats the exact same boost curve I was getting about a week ago. im running non-seq but had a 1.5 inch restrictor plate in. what kinda exaust setup do you have? perhaps your cat or muffler is clogged.

7-sins

Good suggestion. Dont replace your wiring harness that wont do a damn thing. Some of the solenoids might be bad but you could replace them, thats the only thing I can think of having to do with the wiring. Yeah non-seq might help with your problem, unless your cat or pre cat is clogged.

Liemoanh

yeah I actually think they are clogged. The car has 117,000 miles on it. Chance are they are clogged. Will a clogged cat effect primary boost, because it won't boost at all tell redline. Then when I shift to next gear it comes on slowly. I notice today that when I'm on the freeway cruising at about 65 in 5th, then downshift to third, this brings me to about 4500 rpm and then gas it alittle I hear the turbos start to spin loud at this point the boost is at 2, then it drops to below 0, then if I shift to next gear 4th, the boost will raise slowly to about 8 psi. If I'm at a light and gun it. The boost will never go past 1. I could her somthing spool up everything I gas it but no boost at all. How can you tell if a wastegate is bad. Somtimes my primary boost raise to about 15 psi but I let off real quick, this is when the boost builds real quick, 0 psi - 15 psi in about 1 sec. Any other suggestions is really appreciated

Liemoanh

I want to thank 7-sins for all his help. I notice you help alot of people about boost problems and it's nice to have someone like you to help. Boost problems is so frustrating, everyone know that. Thanks everyone else as well

7-sins

No problem man, I had boost problems for 6 months after I bought the car, so I know how it feels. Non-seq solved my problems quickly. Just make sure you go with a ECU upgrade before buying MP or Highflow cat.

Liemoanh

What will I need to do a poor mans non-seq setup. I have absolutely no mods at all. Will I be able to do it in stock form or will I need mods. By the way how the hell do you do it. Thanks everyone

7-sins

You will need a DP, Catback, Midpipe or highflow cat. Also you need some type of computer I suggest the Power FC but the PFS computer seems to work ok too. They are some pretty $$$$ things, at least the Catback and Computer. If you are thinking your cat or pre cat is clogged it might be something to look into next.