Hi, Just wondering if anyone has used the AC relay output to control a second fuel pump depending on RPM or TPS? Looking at the wiring diagram and parameters in efilive it may be doable. Would have to use the NC contacts on a relay and have the "AC Disable RPM" or "AC Disable TPS" actually turn the pump on. Will probably have to bridge the AC transducer input also. I was considering using the shift light output but as my setup is an auto it is used for a shift solenoid.