I’m using a Black Magic fan and it comes with a wire that grounds to turn on. The Fi-Tech I have sends a 12V signal to start the fan. Can I use that 12V signal to fire a solenoid to ground the electric fan’s signal wire ?
sure you can https://www.hagerty.com/media/maintenance-and-tech/understanding-relays-part-3/ get out a multi meter and verify you get the connections and result you want but Terminal Which Circuit? Definition 86 Low current (control) Relay coil + (power input) 85 Low current (control) Relay coil – (ground) 30 High current (load) From battery + 87 High current (load) Output to device, normally open, pulled closed when coil is energized 87a High current (load) Only used on single-pole double throw (SPDT) “changeover” relays. Output to other device, normally closed, pulled open when coil is energized http://garage.grumpysperformance.co...urrent-flow-grounds-and-more.3504/#post-54625 http://garage.grumpysperformance.com/index.php?threads/why-a-relay.15861/#post-95246
Excellent. The ride seems to get a little hot at idle. I’m suspecting the electric fan’s thermostat isn’t going low enough. The EFI would probably be more precise.