D120 Fuel Flow Ground

[robertc]

I'm converting my RV7 with an EMS D120 to fuel injection. I'm putting in a new Red Cube fuel flow sender forward of the firewall. (currently the flow scan is in cockpit) My question is, can the GP ground on pin 16(the discarded carb temp ground) be used interchangeably with the Fuel Flow ground on pin 13? This would make the installation easier as I wouldn't need to ring out the grounds to find out which one is which where they go through the firewall.
Thanks
Bob

 

[dynonsupport]

Bob,
You can use any ground for that sensor. You could even just ground it to the engine if you want. Pin 16 is fine too.

 

[robertc]

Thank you very much. That simplifies the wiring change.
Bob