Pin Descriptions 


Connector A: Injection/Ignition/Auxiliary Outputs

(15.0A Max continuous current - wire gauge dependant)


Looking into ECU connector


Pin

Channel Name

Pin

Channel Name

A1

Injection Channel 1

A18

Auxiliary Output 9

A2

Injection Channel 2

A19

Auxiliary Output 10

A3

Injection Channel 3

A20

Digital Input 1

A4

Injection Channel 4

A21

Digital Input 2

A5

NC

A22

Digital Input 3

A6

NC

A23

Digital Input 4

A7

NC

A24

Digital Input 5

A8

NC

A25

Digital Input 6

A9

Sensor Supply 8V

A26

Ignition Channel 1

A10

Auxiliary Output 1

A27

Ignition Channel 2

A11

Auxiliary Output 2

A28

Ignition Channel 3

A12

Auxiliary Output 3

A29

Ignition Channel 4

A13

Auxiliary Output 4

A30

NC

A14

Auxiliary Output 5

A31

NC

A15

Auxiliary Output 6

A32

NC

A16

Auxiliary Output 7

A33

NC

A17

Auxiliary Output 8

A34

Auxiliary Output 9-10, 14V Supply




Connector B: Signal/Power/Communications/Triggers/Knock

(15.0A Max continuous current - wire gauge dependant)

Looking into ECU connector



Pin

Channel Name

Pin

Channel Name

B1

ECU 14V Supply

B18

ECU Ground

B2

Sensor Supply Vref1: 5.0V

B19

Analog Input Channel 6

B3

EFI Relay Output (Low Side 200mA)

B20

Analog Input Channel 7

B4

Ignition Switch Input

B21

Analog Input Channel 8

B5

Crank Index Sensor +

B22

Analog Input Channel 9

B6

Crank Index Sensor -

B23

Analog Input Channel 10

B7

Sync Sensor +

B24

Knock 2 +

B8

Sync Sensor -

B25

Knock 2 -

B9

Shield (Crank/Sync/ Knock)

B26

ECU Ground

B10

Analog Sensor 0V Reference

B27

CAN 1H

B11

Analog Input Channel 1 

B28

CAN 1L

B12

Analog Input Channel 2

B29

NC

B13

Analog Input Channel 3

B30

NC

B14

Analog Input Channel 4

B31

Ethernet Tx +

B15

Analog Input Channel 5

B32

Ethernet Tx -

B16

Knock 1 +

B33

Ethernet Rx +

B17

Knock 1 -

B34

Ethernet Rx -



Important Notes


Analog Sensor 0V Reference (Pin B10)

This pin should be connected directly to the 0V (Ground) pin on any low current analog sensor, for example Pressure or Temperature.

  • DO NOT connect the ECU pin B10 directly to the Engine Block or ECU Ground. These are dedicated and specialised ground outputs for all analog channels and should be connected directly to the sensor.
  • DO NOT connect frequency-based sensors to these pins; for example, an Ethanol content sensor. The sensor 0V pin should be connected to the ECU ground. 


Half Bridge Driver Power Supply Input (Pin A34)

Pin A34 is a dedicated power supply for Auxiliary Channels 9-10. Power must be supplied to this pin for these channels to operate correctly. In non-DBW (Drive by Wire) applications the ECU Supply power can be shared, assuming the wire gauge has a sufficient rating for the current demand. In DBW applications power to this pin MUST come from an ECU controlled DBW Relay.