exsesive vacuum. 99 2.2 - Boost Forum

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exsesive vacuum. 99 2.2
Friday, February 05, 2016 2:31 PM
I have very high vacuum numbers in the 30's according to my ecm. The breather tube on the valve cover is not clogged up. In running 7psi boost in this motor. Can anyone offer any advise on this?

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