If you haven't reprogrammed the computer then you should leave the
vacuum hose off. The later systems use a fixed pressure, your computer
will not adjust for the lower fuel pressure at idle and part throttle.
It may be a good way to pass smog with larger injectors though ;-)
> Ok..I installed the fuel system from my 93 onto my 96 over the weekend.
> Going from a one line system to a two line system with a vacume operated
> fuel pressure regulator on the fuel rail. For those of you 92 and 93 dak
> guys who have this set up, I have a question about the vacume line that
> comes from the manifold to the regulator. Does it have some kind of
reducer
>
> in line? I am using one of the really skinny plastic molded vacume tubes
> and am still getting two much vacume. The more vacume the less fuel
> pressure. At idel the pressure is so low the truck bogs when you blurp
the
> throttle. Can anyone tell me how much vacume should be going to the
> regulator at idel?
>
> thanks
>
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