4AGE Standalone Management Wiring Help

[Olie]

Hey Guys,

I've got a 1984 AE86 Trueno (JDM), it's running a 16v 4AGE with 20v ITB's and a Cusco ECU with Apexi AFR controller. Since it wasn't quite running right, I've decided to remove the previous ECU and run a standalone engine management system (Emerald K6!). I've found a lot of useful info on here so I'm hopin you guys can help..

At the moment I'm almost done building the loom but am a little stuck wiring in the relay controls, does anyone know how best to wire up the:

*Main Relay Control
*Fuel Pump Relay Driver

*Ignition Sense Input






Its difficult to trace back as the relays don't correspond exactly to the pins under the relay box. From the wiring diagram above I'm assuming I can take the ignition sense input from the wire marked B-O (Left of the EFI main relay), and then use the Emerald 'Fuel Pump Relay Driver' to control the EFI main relay, which controls the circuit opening relay and therefore the fuel pump. But then where does the Emerald Main Relay Control come into?







I was also wondering where its best to obtain a +12v supply for the Emerald ECU, either from the Main Relay, or common with the ignition sense input..

Any help will be greatly appreciated

[Matt]

That link above should sort out the circuit open relay for you... The afm provides the earth to the green / red wire on the circuit open relay.

The ignition power to the ecu can be taken from the efi main relay.

Best way to trace the pins is to get a male spade connector, and put it in the top of the relay pin and do a continuity test. (measure resistance)