NO BOOST!!! HELP!

TjXiong · 10-06-2010

hey guys i have a 97gst 5sp 7bolt stock with an broken xbc extreme mbc, 255 wablrom f/p, 2.5 dp, custom exhaust, safc, mb16g, evo3 02 housing, boost gauge, air/fuel gauge, 550 cc infector. i dont remember the rest but the car has 53k miles and now everytime when i go into boost the guage needle doesnt rise and theres no power. help?...i gtg work well update later. thanks.

**Halon** · 10-06-2010

Boost Leak test?

95talonracer · 10-06-2010

Do a boost leak test and give us an update.

**goodhart** · 10-06-2010

Quote:

Originally Posted by TjXiong

with an broken xbc extreme mbc

Replace the mbc? After checking for a boost leak of course.

4g63tcrazy · 10-06-2010

Boost leak or wastegate arm came off the flapper.

TjXiong · 10-07-2010

I haven't done a boost leak but when I do gget into boost it tend to stop and struggle around 5 to 7 psi. Couple days ago ill go up to 16 beautifully and 19 before the mbc broke.
I don't have the proper tool to do a boost leak...anyone have time to do it for me?...ill drive to your place with a pack of boozesss if that's needed to. Thanks guys.

4g63tcrazy · 10-07-2010

So the MBC broke but your not sure why you are only getting 5 to 7psi? The car will feel like its struggling if it went from 16psi down to 5.

Gravy · 10-07-2010

I second that. You can get everything you need for one at Home Depot.

TjXiong · 10-10-2010

probably be burn from you all but im in for that...sorry guys i havent update this but looks like im having an exhaust leak too now..getting worse everyday...sounds like its coming rigt under the downpipe but i have checked an didtn see anything...yet no boost too...I went out and bought an hallman mbc still no boost...idk whts going on...anyone willing to help me take a look? ill drive to your place. thanks guys...short on money and time...havent down a boost leak test but it sounds and feels like theres a leak coming from the exhaist manifold. driving me nuts.

TjXiong · 10-10-2010

Got it fix. Took work off to fix the car and found major boost leak coming from the exhaust manifold. Boost turned up to 20lbs now and it feels good.

**scheides** · 10-10-2010

boost leaks don't come from an exhaust manifold, exhaust leaks do though :P

Thank god you fixed it, I don't think I could stand anymore run-on sentences or lack of punctuation. Blasphemy around here!