Fuel pump driver module

This replaces the need for fuel pump relay, and is part of my plan to run a closed loop fuel pressure control system. The advantages of such a system include reduced fuel pump current draw, reduced fuel heating (and hence cooler, denser, intake charge), reduced noise, increased pump and filter lifetimes... 

Initially I will be keeping the adjustable pressure regulator and return line to the tank, however they should be nearly redundant. Over time, if I can get the level of accuracy of the control system good enough, I may be able to remove the regulator and return line and run a fully returnless dead-headed, closed-loop system which will give further weight savings.

The Pectel SQ6 has a number of dedicated PWM outputs, so can drive this VDO Jag/Aston fuel pump driver module directly.