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Old 01-21-2020, 10:56 AM   #663 (permalink)
soill370z
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Join Date: Mar 2015
Location: illinois
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Quote:
Originally Posted by Senna-F1 View Post
Since my 41 psi was with vacuum line connected and engine running, would the gauge have registered more had I unplugged it? Wondering what effect it has with line connected vs not connected.


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yeah it would have came up a few psi, once you have vacuum on it, it drops a tad. with mine set at 52 , once i connect vac it drops to around 48-50 ish.
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