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2G vacuum readings higher when rev

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mnypit

Probationary Member
10
0
Aug 17, 2013
Yorkville, Illinois
Hey guys! Just did some work on my gsx which included installing a boost gauge. It reads 12psi of vacuum at idle, but when i rev to 3k the vacuum goes up to 20. Getting in a couple parts in soon to run a boost leak test. Do you guys think I have a leak or different problem?

Thanks!
 
sorry just updated my profile. Listed the mods that are on the car. Just put the s90 TB on and had the exhaust manifold off to replace a broken manifold bolt. Decided to install a boost gauge to read boost so i didnt have to look at ECMlink on a computer to see what its at. starts at around -12 at idle and goes up to -20 at 2800-3000 rpms.
 
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