evo X Hfs 3 issue

[Awd_beast]

I have evo x and about to wire up tephra alt map failsafe. Do I have to use relay with hfs 3 or is it just as simple as picture showes ?

[Richard L]

Run it as the picture shown. The HFS3 has an internal relay to drop boost or tephra. No need to run both.

I prefer tephra.

[Awd_beast]

Perfect so I dont need put resistor between white wire on hfs ecu harness to pin 115. Just resistor to the ground as per picture correct?

Also area I live in 200r are impossible to get...can I use 220r or perhaps 180r resistor ?