Does anyone know if the ECU controls the ground for the fuel pump?  I am
familiar with Digifant but not CIS and my listmember-neighbor's Quantum sedan
won't start. The fuel pump works if you ground the ground wire to the body,
and the relay is supplying power to the pump. I do not hear the pump working.
Also I noticed a vacuum hose disconnected that comes off the end of a
pressure regulator on the throttle body and I was told that it has been
running like this.  Where does the ground wire go from the the fuel pump? If
you are doing a 5-cyl CIS conversion to your Vanagon than this might be the
question just for you. Any one with knowledge of CIS can help-thanks! Vehicle
is a 1988 Quantum.

Robert Keezer
1982 Westfalia
Seattle