View Full Version : NO BOOST!!! HELP!
TjXiong
10-06-2010, 09:34 PM
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, 09:40 PM
Boost Leak test?
95talonracer
10-06-2010, 09:41 PM
Do a boost leak test and give us an update.
goodhart
10-06-2010, 10:08 PM
with an broken xbc extreme mbc
Replace the mbc? After checking for a boost leak of course.
4g63tcrazy
10-06-2010, 10:24 PM
Boost leak or wastegate arm came off the flapper.
TjXiong
10-07-2010, 01:23 AM
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, 06:44 AM
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, 08:28 AM
I second that. You can get everything you need for one at Home Depot.
TjXiong
10-10-2010, 03:42 PM
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, 07:20 PM
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.
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