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On the 14 Pin Plug Remember you are looking at it from the back where the wires go in.

Join +B1 and +B together and provide Ignition Power from the EFI Relay
Connect BATT to the stop light circuit or straight to the battery via a 10amp Fuse
Connect W to the "earth" side of the check engine globe
Connect the SPD to the back of the dash cluster speed output
Connect the FC pin to the Fuel open circuit relay running Earth ( )

The other plug you should connect is the STA wire which gets 12v whilst Cranking the car, this will let the ecu know about cold start conditions.

Allot of people get confused about the check engine light, and how to wire them in. For a globe to work you need one side powered and the other earthed. Think of the ecu as providing the earth to the globe, and the dash cluster the power side.

** Yes the diagram is from an ae82, but the pinouts are EXACTLY The same ***