Dynon Avionics EMS-D120 Installation Guide - Manual (Page 22)

Transducer Installation
3-8 EMS-D120 Installation Guide
are converting from a GRT EIS system, you must disconnect the external resistor pull-up from
the fuel pressure output. This will make the sensor output equivalent to the sensor supplied by
Dynon Avionics.
Injected engines: Use the 0-80 PSI sensor (Dynon P/N 100411-001). Crimp a standard #8 ring
terminal onto the brown wire from pin 8. Unscrew the stud cap from the threaded stud. Place the
ring terminal on the stud and secure the cap down sandwiching the ring terminal. If the
connection between the sensor and your engine is non-metallic, you must connect the sensor case
to ground through other means. The best way to accomplish this is by sandwiching a ground-
connected ring terminal between the sensor and the mating fitting.
Due to vibration issues, never connect the sensor directly to engine.
If you use Teflon tape or other seal, ensure the sensor casing still maintains a good
connection to ground.