Location: north brisbane
Registered: September 2003
3tgte boosting problem...
Sat, 09 July 2005 08:33
hey guys...i was woundering if anyone with a stockish 3tgte could help me...wen i rev my engine...and it hits boost...the vac drops from about 20 to 0...but no boost?i rev it up to 7 or so but it just stays at 0....i have tried hooking up a boost controller and playing around with adjustments...but still no luck...i have a lum back b.o.v and you can see the piston inside relise wat i asume is some sort of boost when you back off the throtle.....whats goin on??
i had the exact same prob when i installed my boost guage....i stuck the t piece in the middle of one of the vac tubes and it would rais from 20 to 0 but it wouldnt show any posotive preassure....it was being equallized from the other end of the vac hose...not sure exactly where it was going but it went in under the intercooler sumwhere (st165)....so i pulled the T piece out...ran the boost guage line straight into the vac tube comming from the intake manifold/tb (cant remember where it came from at the moment) and i sealed the end of what was left that was heading in under the ic....dunno if this helps ya or not tho...