Fuel Pump Relay differences

[Ben Swann]

I am trying to find out why the fuel pump relay for '87.5 GT coupe/CIS-EIII or similar from 5ktq will not work in the '87 4kq that I have transplanted the NG and CIS-EIII wiring harness.  At this time I feel fairly confident that everything for the ECUs is wired properly and pretty much according to the diagram for '87.5 GT Coupe.

Looking at the relay differences, each relay uses 46/15 ign and 51/1 coil(1) to trigger and 48/30+ closes to 52/87 to power the pump.  I have wired 49/La previously unused on the 4kq to connect to the ECU test wire and a power feed as shown in 97.5 diagram for a knock sensor/engine light.

The other teminals 53 and 59 are not wired and the relay I have for 87.5 GT Coupe does not even have a 53 terminal.

Any ideas why it doesn't work? From the looks of the diagram, the relay should work even without changes, and the added feature is the fuse for diagnostics.

Ben