Boost gage on 92 SSEI

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May 15, 2007 | 07:19 PM

rolley

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From: Canada, Montreal

Boost gage on 92 SSEI

Hey i was wondering if it was normal that my boost gage stays at -70 when i'm not accelerating....right when i accelerate it goes up as i go further down on the pedal obviously....but is it normal that it idles at -70 ?
If not what could cause that?

May 17, 2007 | 05:11 PM

rolley

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anyone, no?

May 17, 2007 | 05:14 PM

harofreak00

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yes, that is completely normal. your boost is being bypassed at that point.

May 17, 2007 | 08:00 PM

willwren

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You are reading manifold vacuum at idle, just like a non-supercharged car. Mid-throttle should read about zero, and wide open throttle (in gear) should read about 8-9 psi on US cars and about 3/4 scale on

cars with stock pulleys.