Can the ECU+ give out a pulsewidth modified 12V signal? I have an electric 12V solenoid that is basically run by a pressure switch right now. Any time my boost goes over 11psi I inject water/meth. This isn't the optimal way to do it. I'd rather have it increase flow linearly (maybe even exponentially) with boost. If I could get pulsewidth control over that solenoid I could do it. I'd relate boost pressure to the solenoid pulsewidth.
For my system The ECU+ would need to do no more than that. It would need to have a cross reference table where it correlates boost pressure to a pulsewidth (ranging from 0-100% where 100% is completely open, constant +12V (or ground, I suppose))
My solenoid I think pulls up to 5 amps sometimes. The only way I know that is because I blew my 5A fuse last race, which was the first time ever...
My pump is always energized and keeps the system up to the solenoid pressurized. I have an accumulator inline to keep the motor duty down.