Boost issues, maybe bov or wastegate?

[kre8ive_kustomz]

last week after my fmic install one of the couplers blew off a pipe at around 15psi. I got it home, scrapped the ebay aluminum pipes for a mild steel mandrel setup i welded together. I have no leaks at all right now but boost is still reaching 13 like nothing. i removed my mbc so i dont mess anything up. the thing is the car isnt reacting to the boost, the gauge shoots up with little feeling in the car, almost like when a clutch slips, you can watch the rpm's rise but the car doesnt go any faster.... im running a greddy rs bov with a stock t25 and stock wg. it sounds like a leak behind the intake manifold after startup, if i turn the biss open and let the idle go around 1300 i hear a clicking that seems to be coming from the intake itself. with the tb open just a bit vacuum goes from -23 at idle to -10 instantly and every once in a while it feels like the turbo is catching and i get neck lashing bursts of power...... I don't see how a leak in the intake would cause this..... I used a hand pump pressure tester on a spare wg, it opened under the pressure fairly easy and i tried the wg on the car, it opened the the same but in order for the wb itself to open i had to help it. it opened about the same distance as the actuator i tried off the car though. in neutral the bov never used to open/close except for at high rpm, now it opens at 3k like it just did a 3rd gear pull. im lost as to whats causing the issue, too many things stick out to me. i know theres no leaks in the ic piping, will it hurt anything if i manually open the throttle during a boost test to see if maybe i can hear a release? the lack of power makes me think its the wastegate opening prematurely and letting all the power go right out the exhaust.... im just truely lost, please help!

 

[hereitcomes]

i had this problem my boost would shoot up to 30 RIGHT away with my MBC disconnected after the hose blew off. I wouldnt feel any power difference from even 5lbs, just infinate boost. Check your MBC hose routes and look for disconnections. Good luck man! post back!

 

[yesItsdsm]

I would check the intake manifold gasket also to make sure there isn't a leak there.

 

[kre8ive_kustomz]

i did a leak test off the throttle body elbow this morning, found a leak in the throttle body/manifold junction as well as one of the injectors. I have it all back together now and it works alot better, boost is there atleast, strange though because it idles good, i get on it in any gear and the boost jumps to 16 for a second, then goes down to 10 and slowly climbs up to 15.... and my mbc is disconnected still. i did find an exhaust leak but i don't know if it would cause that much of a difference. I'm going out to the shop right now to fix that..... i"ll post my results.

 

[kre8ive_kustomz]

well, i fixed the exhaust leaks, it sounds better now but theres not much of a difference performance wise. im going to do another leak test to make sure nothing else opened up. its seeming more and more like a bov issue, i dont understand why its boosting so high with no mbc though, stock is around 12 and its going as high as 18.... why?

 

[kre8ive_kustomz]

shes running great with the exception of my greddy tvvc not behaving, sets fine to 13 & 15 but doesnt like 14 for some reason. The issue at hand ended up being the #1 injector seal. I made a leak tester to fit the throttle body elbow and found it right away.....