I did all my vacuum lines. I also bought the 99 spec y-pipe and installed that. Today I recieved my pullys to remove my air pump. I did all this as one project. I figured being that the car was apart it would make life easier. HAHA boy what an *** to think it would be easier. I just made it feel like it was never ending work.

Back to the point. I started her up today and idles great better than before. About 16 in vac. So I figured I would take it out for a spin test out all the new stuff. I let it warm up a little then left to a main road. Then I gave it some gas to about 12-13psi. It seemed that everything was great. Then the next time I stepped on the gas it was making 5 psi and made a really loud wuuuuuuing noise. Like an ecco of a turbo and then intenseified. So I got nervous and started to head home and gave it gas once more and it did the same thing.

It happens as soon as I make boost and then let off the throttle. The more boost I try to make the louder it gets.

I got home checked it out but couldnt see anything obvious. So about 2 hours later I took it out again and it made 12-13psi and I got off the gas. Then when I tried it again the noise and boost problem came.

I am pretty sure the vacuum lines are all fine and in place. I took a long time to make sure it was right. Could it have anything to do with the air pump removal?
Another thing is I made my own intake piping and now im not 100% sure I remember where all the piping went. Could i have put the bov in wrong or something stupid like that to cause it?

Any advise would be great..

 

I have a similar problem ..... going non-seq.

 

Anyone have any ideas as to what it could be?

 

I would check your BOV, you might have it on backwards or something. Also if you have any check valves left...take them off and make sure they are working properly

Jack

 

http://www.autosportracetech.com/RX-...leshooting.htm

 

make sure all the big hoses that attach to the UIM and elbow are clamped on.

 

If a line is off or possibly have a slit/hole in it would it make a loud whurring noise.