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Old 03-14-2013, 07:29 PM   #24

DrkPhx's Avatar
Drives: 2013 Triple Black ZL1 / 2006 TB SS
Join Date: Feb 2011
Location: MN
Posts: 2,084
Good point. I didn't see the negative by the lower 12. Mine start at 30 in hg and goes to 15 psi for boost. Though I did set up a pid in my scan tool to log boost (only in psi) and it shows a negative boost number in psi at idle even though it's technically not negative boost.
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