How can i make my fuel pump turn on & off using AEM EMS? As in just the fuel pump when the car is not running. I want to drain the 93oct out fast.

 

You might try to flip the polarity by changing the (active when) of the high pressure switch and then change the paramenters to come on at -14.69 load and 0 rpm. LS1 is the input you can see on Configure Outputs menus. Worth a shot.