I just finished installing a downpipe and intake on my car. It was running great, better than ever before. I made a few WOT runs and everything was fine but then after about five runs my boost gauge would not go past 0 PSI. I've checked all my hose clamps between the turbos and the intake manifold and they're fine. I don't see any evidence of a split or ruptured hose. I can't figure out what the problem is, maybe ya'll can help.

 

You probably popped off a vacuum line. Check your lines in front of the UIM, and under the black pressure chamber.

 

same problem here.check your wastegate control rod.its located below your intakes.If the c-clip falls off its only a matter of time before the rod pops off and then no more boost.

 

if you hear a rush of air coming from the passenger side, check the rubber collar on the pipe connected to Y pipe that goes into the intercooler. MIne kept popping of and i had to replace the stock clamps with one with more tracks because they wouldn't get tight enough.

 

can you see the rod from the top if you remove the intakes? my car is running 4psi

 

yes you should be able to see the rod without even removing anything.But to get to it will require the car to be jacked up and you have to do it from underneath.Thats the easiest way.

 

where should I look for the clip to be or NOT be?
crud...I hate living in a condo...time to go bug friends

 

0 psi in primary and secondary turbo engagement usually always targets a ripped or loose y-pipe coupler and/or IC coupler. Take them off and inspect thoroughly. Also, check your plastic cross-over tube and IC piping for hairline cracks. Good Luck.

 

not geting 0, just 4, always 4 lol.

 

still could be the y-pipe coupler, i'd pull it and see if it's cripped, may appear to be on soilid but, could be leaking @ the base, that's what mine was doing a couple of weeks ago..........

 

Whats the UIM and whats the black pressure chamber?

 

Upper intake manifold. Intake manifold is 2 parts, lower which bolts to the engine block and upper which runs horizontal, looks like a 4 part menorah. Dont know what the bps is