Originally Posted by utc_pyro
How bout just use the stock ECU PWM output to drive a power mosfet? You really have no reason to run the thing at 100% most of the time (it will DECRESE the life of the pump), just let the ECU do it's thing bit with less total inline resistance fore the pump?
Yep that's what I had in mind. I am looking into getting a PCB fabricated with quick-disconnect terminals and proper voltage and current stiffening.