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V6 throttle body vacuum ports/lines what goes where?
Posted by RichG (more from RichG) on Thu, 24 Oct 2002 19:14:54
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There are three vacuum lines, secondary air injection, fuel pressure regulator, and the canister purge valve. There are also three ports on the throttle body, but only two of these are manifold vacuum. The third is upstream of the throttle valve. Just intake flow. The problem is which line is supposed to go to which port? Currently the line from the FPR is installed on the non-vacuum port.(The one ahead of the throttle valve.) The other two are on the manifold vacuum ports. This configuration defeats the purpose of a vacuum assisted FPR. The vacuum diagram under the hood is vague to the point of being useless. I would greatly appreciate any help. Thanks in advance, RichG
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