Need help wiring fuel relay

I'm installing the Tec-GT ECM

The instructions tell me to connect

The light green (fuel pump relay ground) according to the Tec CD

Carls manual say
Fuel pump and engine power supply wire

a. the light green gets spliced with a diode and connected to the (brown/red W15)
and also gets connected to the (Brown/white W21)

The problem is the diode did not get shipped with it and when I look at the wiring diag. something is not making sense.

I am trying to work around not having the diode

Both W15 and W21 go to relay terminals #85, I wonder why they say install a diode on relay XX and not on XXV

Any Ideas

You better take that up with Carl man! You are one of the VERY FEW folks who have attempted this change over!