Thread: S/C Boost Question
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Old 07-24-2018, 05:09 PM   #10
nicktechla

 
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Drives: 2012 Porsche 911 Turbo S
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Quote:
Originally Posted by 17CamaroZL1 View Post
When it reads negative, that's vacuum. Perfectly normal.
Maybe your CTS V didn't show vacuum?
++ Guarantee it just didn't show vacuum.
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