Efi vacuum lines

[Smaz]

I am finishing my 5.0 efi swap and need to know which vacuum lines have to be hooked up. So far I have the one that goes to the fuel pres regulator, and the one that goes to egr. I am not running smog pump. What else?

 

[Johnnyb]

That's all I have. Pressure regulator goed to manifold vacuum, and EGR goes to EGR control valve, then to vacuum, even though there is no EG to R.

-J

 

[lars]

If your EGR is actually connected and functional, it will need a line from the manifold to the EGR vacuum regulator valve and then on to the EGR valve . And of course if all of the smog pump circuitry is intact, lines will be needed for the TAB and TAD solenoids. If like most people doing the swap you don't have any of the above connected, then the only vacuum line you need will be for the fuel pressure regulator.