# boost or gauge problem?

**URL:** <https://forums.speedlife.net/t/boost-or-gauge-problem/216861>\
**Category:** SON240sx Automotive\
**Created:** [September 24, 2011, 11:40am UTC](https://forums.speedlife.net/t/boost-or-gauge-problem/216861 "2011-09-24T11:40:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![240sx\_nismo](https://avatars.discourse-cdn.com/v4/letter/2/3da27b/32.png) [@240sx\_nismo](https://forums.speedlife.net/u/240sx_nismo)\
**Post date:** [September 24, 2011, 11:40am UTC](https://forums.speedlife.net/t/boost-or-gauge-problem/216861/1 "2011-09-24T11:40:34Z")

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just installed a aem digital boost gauge and it dose not hold boost, it will go from 3 to 5 down to 2 and 0 and some times stay at 0, basically numbers just flying back and forth and not holding a steady boost number, could this be do to boost leak or is the gauge no good?

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**Author:** ![jeeta\_s](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jeeta_s/32/5758_2.png) [@jeeta\_s](https://forums.speedlife.net/u/jeeta_s)\
**Post date:** [September 24, 2011, 6:08pm UTC](https://forums.speedlife.net/t/boost-or-gauge-problem/216861/2 "2011-09-24T18:08:49Z")

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whats your vac source?