Im making this post for a friend, he called me and asked me to. The details are a little bit Slim, so when he gets a chance he will update it.

but the question is... there is a flapper on the ehaust manifold, it looks kind of like a wastegate flapper, Where should it be going, should it be plugged up? he said it was just dangeling there.. The manifold is a s4 turbo manifold

thanks for your help in advance

 

It's the twin scroll system.

 

Need more info. Is the manifold on the engine? Is the engine running? Is the flap still connected to its actuator? Is the actuator's vac line connected to a vac line? Are all the solenoids on top of the engine still in place? Have you looked this up in the FSM?

 

ok it is my car and the manifold is still on and there are no vacuum lines or anything going to it there is just the flapper now its stuck close i guess cause my car is slow as ***** and it dosent boost really so tommorow id like to weld the flapper open so i can get full boost gaian


one question wich way is open?

 

if you aren't getting boost then it isn't the twin scroll that is faulty but it will cause extra lag and lower boost levels.

you can cut it out and weld a bolt in it's place, which is what i did or you can get an actuator and hook it up properly and working again.

 

it gets boost but its extreeeeeeeeeeemly laggy it was working fine before i guess it was always open so ima weld like a peaci of medal to it to keep it open cause i dont wanna take the manifold off right now

 

i suggest not shortcutting it, i don't know what type of metal the flapper is made of or if a weld will hold and stick to it. i would rather not risk damaging my turbo if it were to break loose and have to go through the turbo blades.

 

well the whole thing is still intact its not like falling apart its just not connected to annything but its mounted in there firmly like it would be out of the factory just nothing hooked up to it

 

i'm just saying, don't underestimate the heat going through the manifold from a rotary.

 

oh i understand lol im only doing this fix for the weekend on monday the manifold will be coming off asap