Connector Wiring

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Injector driver connector, as viewed from the wire side:

 

GND

(7)

Black

GND

(8)

Black

Out1

(9)

Brown/Green

Out2

(10)

Red/Green

Out3

(11)

Blue/Green

Out4

(12)

Yellow/Green

+12V

(6)

Red

Activate

(5)

Purple

In1

(4)

Brown/White

In2

(3)

Red/White

In3

(2)

Blue/White

In4

(1)

Yellow/White

 

Pin descriptions:

 

Pin

Connection

Notes

GND

Ground

Connect both ground wires to the ECU master ground. Do not ground to the chassis or ECU case.

+12V

Power

Switched power. It must be powered during cranking.  You can use the main relay ECU output.

Activate

Activation input

When grounded activates the injector outputs.  Ground if not used.

In1 to 4

Injector Input

Connect to the ECU injector outputs.

Out1 to 4

Injector output

Connect to one side of the injector.

 

The ECU master ground is where the main harness ground point it.  On Honda B-Series vehicle this is on the thermostat cover.  On the Honda S2000 it is at the back of the cylinder head.  On Acura K-Series engine vehicles it is on the intake manifold or valve cover.