Does anyone have the PROPER way to connect the under dash electronic fuel pump wiring in a 240Z? For testing purposes the connection in this picture (green and black/white wires) was jumpered and it worked. Being that there is a molex plug here there must be more to wiring it up properly. I've been told that the factory had it wired to the oil pressure gauge so that if the car lost oil pressure it would stop the fuel pump.

You could do an inertia switch in the jumper loop on that plug.

Duralast Fuel Pump Inertia Switch SW1771

The oil pressure switch on the 78 280 was the only model that had that configuration.

Here's a good read on installation for a '72.

Dave's 1972 Datsun 240z: Electri...

Electric Fuel Pump Installation

In an effort to make the 240z more reliable, I've decided to upgrade to an electric fuel pump and then retire the mechanical pump.  By using...