Golferken55
Member
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- Cx-7
Hi folks. Can you provide photos of an intake manifold vacuum line that I can use to connect my boost gauge for 2007 Mazda CX-7? Thanks a bunch!
is it normal for it to show negative pressure? It’s reading -18 psi at idle.
That sounds about right to me. If the turbo is not forcing air into the engine, the engine is sucking air which is what causes vacuum. A negative reading on a boost gauge is merely telling you how much vacuum your engine is pulling.