Fan relay and sniper install

A few things

No idea what they are doing with the green the so called "diagram" is contradictory
85 and 86 are the relay coil and the OFTEN MATTER because many? most? relays have supression diodes in them. So connect the relay 86 direct to fused power and the 85, (ground) side of the coil should go to your EFI trigger. BUT CHECK THIS FIRST before you connect it. Try it by manually grounding the black to make sure the relay triggers and works, and PUT YOUR multimeter in series to measure coil current draw. And, "just to just to JUST TO" be safe, add a supression diode across the black to ground. You want it to "not conduct so you want the banded end at the relay and the opposite end ground

EDIT The diagram MAY BE incorrect if the relays have internal diodes. IT MAY BE that power should go to 86 SO CHECK IT. If you reverse 85 and 86 and IF there is an internal diode YOU WILL blow up either the internal diode OR THE EFI OR BOTH

CHECK THE RELAY TERMINAL NUMBERS BY THE DIAGRAM BELOW AND BY THE CONNECTOR COLORS WHICH MAY BE WRONG