Mirage2.0

iTrader: (8)

I have just looked at my set-up. Cold side of the turbo is perfect. All the vacuum is connected. I see the exhaust gas comming out of the dump tube.

The question is how can I know if my wastegate spring is bad? Right now it seems like that could be the only problem.

Vacuum reads the same as before.

lancer2show

iTrader: (11)

if 1 of your intercooler pipes got d/c your car wouldn't be running. i know from experience.

well i would check your wastegate spring. their pretty cheap to replace. are you getting any boost pressure reading on your gauge?

Mirage2.0

iTrader: (8)

D/C?

No boost at all, 0.

Someone told me that it could not be a spring and that my wastegate is stuck open. How can I fix that?

lancerrally45

iTrader: (22)

open it up and swap a spring or check to make sure its in right
d/c means disconnected...........

Mirage2.0

iTrader: (8)

Everything is connected.

How would I know that everything is right inside the wastegate (the spring)? I have never seen this inside before.

Also:

1) If I would need to swap the whole wastegate then can I get different one as long as it's 38mm?

2) Other people tell me that my spring might be fine just my wastegate is wide open? How can I check that?

kungfugirl

iTrader: (4)

If ur wastegate is open ur spring isn't fine, as it controls ur release point based on vaccume.

If u wanna just replace your wastegate, if the flanges are the same i reccomend tial, i have it and it seems dependable.

Mirage2.0

iTrader: (8)

If that's my problem than I just rather exchange the spring.

senate6268

iTrader: (20)

You just figured out your problem. If exhaust gas is coming out of the dump tube then your wastegate is stuck open as everyone has stated. You should remove your wastegate assembly and take it apart for cleaning and inspection. You might have a buildup of some kind that is causing the valve to stick open or the spring is broken in some way. It may not be properly seated or maybe it shifted out of place. The wastegate spring is what keeps your wastegate closed until a certain amount of boost is built. There are different springs of varying pressures for being able to control the amount of boost built up before the valve begins to open. Since yours is constantly open that means it is stuck open or the spring is broken in some way causing it not to keep the wastegate valve closed and not allowing you to build any boost.

kungfugirl

iTrader: (4)

Agreed^

Mirage2.0

iTrader: (8)

Ok than the spring is my problem, I'll check that out.

Thanks guys. I have seen such good numbers from the dyno, but I don't even have tested it. That sucks, lol.

lancer2show

iTrader: (11)

did you buy that wastegate used? im not too familiar with turbosmart other than i know their a little more expensive than TIAL.

i know alot of people run turbonetics alot of honda guys and of course the popular TIAL with no problems.

Mirage2.0

iTrader: (8)

Yes it was used but for 2 weeks only. If it's only a spring then I just rather get another spring. I really don't feel like spending over $2XX for another wastegate.

I'll open the top of the wastegate tonight and see how it looks. Hopefully nothing else is broken in there.

SLVROZ_03

iTrader: (10)

Well, I doubt that it's a spring...more likely the diaphram broke or something. Exactly, what WG do you have?

Mirage2.0

iTrader: (8)

38mm Turbonetics Ultragate Street

But if my diaphram would ripp then would that cause boost creep?

Someone else told me that my exhaust side of the turbo is shot, but then why I see gasses coming out of my dump tube while just slightly reving?

kungfugirl

iTrader: (4)

the problem could in fact be the turbo, as far as i know the guy you bught it from bought it off ebay and it is a knockoff. Not sure though.