HELP lost my boost

[jarredsoon]

OK.

So I have a stock tta and decided to put a K & N airfilter on it, so I got one that fit onto the elbow and into the corner of the fender. I put it on.

So then I decided to put a breather on the valve cover on the drivers side. I removed the pipe and put a breather on the valve cover and took the pipe right off. the other end of the pipe goes into the inlet bell of the turbo so I put a cover on that.

NOw I can't get more than 5 lbs boost when WOT. WHat is going on. WHat did I do???

SO I take the breather off and re-attach the crank case vent pipe and hook it up between the valve cover and the turbo inlet bell, still no more than 5lbs boost.

What do you guys think?

Thanks.

 

[XLR8]

Check the vacume hoses that run from the turbo to the wastgae and the solenoid - maybe one came off.

 

[jarredsoon]

Well I checked the "Y" tubes and they all are ok. No cracks or tears, the car makes a very high piched sound when I let off the gas when test driving, not the usual sound it makes releasing the air. Is there a way to adjust the stock waste gate???
I am still confused. I did not do any real change to the car??? and I can't find anything wrong (although my skills are limited.) It seems to make power up to about 5lbs and the car can no longer accelerate and/or create more boost and boost just stays at 5.

 

[slow305]

I have this exact same problem. Car was boosting fine, then one day, it wouldn't get above 5psi. Car would just fall on it's face. Checked EVERYTHING. Boost gauge line, vacuum lines coming off the vacuum block, replaced headers, checked y-lines and more. I even disconnected lines from the wastegate to see if the car would just boost until it exploded, nothing, only 5 psi. Let me know how this turns out.

 

[jarredsoon]

the very bottom hose clamp on the tube connecting the up pipe to the intercooler was loose, I tightened it and now all is well. Car is better than ever.

 

[slow305]

Damn!!! I already check those on mine.