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Old 05-23-2004, 12:43 AM   #1
jikhead
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Member#: 32535
Join Date: Feb 2003
Location: Maumelle, Arkansas
Vehicle:
2009 Nissan 370Z
Monterey Blue

Default Boost gauge shows no vacuum/what gives?

I just noticed tonight that there's no vacuum occuring, according to the boost gauge. I've got 2 boost gauges(had the OEM gauge that I never bothered to disconnect) and it's not the gauges, since both are showing the same thing. Even at idle, gauges sit at equal pressure. Anyone have any idea what is occuring?
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Old 05-23-2004, 01:03 AM   #2
Mulder
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Chapter/Region: Tri-State
Location: NYC
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02 RAV4 MT
15 WRX/11 CRZ

Default

Where are the gauges tapped into? The proper connection point is any direct manifold tap, usually it's done from the hose to the factory bypass valve on the intercooler because it's readily accessible.
If you use the hose to the wastegate instead the result will be what you are seeing, no vacuum will be indicated and also the boost readings will never go above wastegate pressure.
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Old 05-23-2004, 04:48 PM   #3
jikhead
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Location: Maumelle, Arkansas
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2009 Nissan 370Z
Monterey Blue

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Never mind, I found the problem. The boost sensitive switch I've been using for my CO2 sprayer had a leak, and I took it off to fix the problem.
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