zero boost

87supraturbo19

pearl white
Jan 16, 2006
360
0
0
38
Springfield,MO
ok, at idle my car reads zero boost. i have searched but i cant really find my anwser. i know its probably vaccum leak or hose hooked up wrong, but i cant really find it. i know i have seen this problem on here but i cant remember. ?
 

Joel W.

Just A Jedi
Nov 7, 2005
1,561
0
0
Washington
I don't think it should have boost at idle... :dunno:

CHECK TURBOCHARGING PRESSURE
(a) Install SST (turbocharger pressure gauge) to the pressure
regulator with a three way.
SST 09992-00241
(b) (MIT models)
Accelerate the vehicle with the throttle valve fully
open after driving at 3-speed at 1,000 rpm.
Measure the turbocharging pressure when the engine
speed is over 2,500 rpm.
Standard pressure: 0.39 - 0.53 kg/cm2
(5.5 - 7.5 psi, 38 - 52 kPa)
-I
(c) (AIT models)
From a stationary state accelerate the vehicle in "L"
range with the throttle valve fully open. Measure the
turbochargining pressure when the engine speed is
over 3,500 rpm.
Standard pressure: 0.34 - 0.42 kg/cm2
(4.8 - 6.0 psi, 33 - 41 kPa)

Page TC-8
http://groundsky.co.nz/techinfo/TSRM/05_TC.pdf


:)
 
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xarewhyayen

276 whp - 324 tq @ 13psi
Oct 3, 2005
959
0
0
39
Philly
no it shouldnt have boost at idle, but it shouldnt be @ zero either. If you're looking at the engine bay from the front of the car, look to the right of the intake manifold by the fender. Theres a black box that says something to the extent of "turbo pressure sender" or something of the sort. There should be a vaccum hose going into it from the back of the intake manifold. My guess is thats not attached.
 

Joel W.

Just A Jedi
Nov 7, 2005
1,561
0
0
Washington
I wish all threads worked like this one.. :)

In 2 mins he had a correct answer(my confusion aside), and reported back problem solved in 30 mins all after 10pm .WOW ;)
 
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