ECU Connector Pinouts

Module Pins

The ECU module has five connections, which are (from left to right) Ignition, Injection, Main Engine, Panel, and Exhaust. The plugs are keyed and colored so that same size plugs cannot be plugged into each other. Pin numberings for each are shown below.

Ignition Connector - 8 Pins

Ignition Connector Pinout

Pin	Connection
1	Coil 1-
2	Coil 2 -
3	Coil 3 -
4	Coil + (all coils)
5	Shield
6	Coil 4 -
7	Coil 5 -
8	Coil 6 -

Main Engine Connector - 23 Pins

This is the white 23-pin connector.

Note: Numbers in parentheses under “Connection” below are the destination plug pin label.

Main Connector Pinout

Pin	Connection
1	Oil Thermistor + (1)
2	Oil Thermistor – (2)
3	Throttle + (4)
4	Throttle – (1)
5	Throttle position 1 (6)
6	Throttle position 2 (5)
7	MPU TDC+ / Hall (*)
8	MPU TDC- (*)
9	Coolant Thermistor + (1)
10	Coolant Thermistor – (2)
11	DPV A (A)
12	DPV D (D)
13	Solenoid +
14	Throttle pot ground (*)
15	Shield (*)
16	Oil Pressure Sig (C)
17	Manifold pressure Sig (C)
18	12V Power for hall (*)
19	DPV B (B)
20	DPV C (C)
21	Motor pot 5V (*)
22	Flywheel MPU + (A)
23	Flywheel MPU – (B)

*These connections at the sensor vary numbering by engine or branch to multiple locations. See engine harness drawing.

Panel Connector - 23 pins

This is the black 23 pin connector

(Physical pin layout the same as the image in main engine section above)

Panel Connector Pinout

Pin	Connection
1	CAN H
2	CAN L
3	CAN GND
4	Shutdown input (Ground to shut down)
5	Alarm output
6	Fuel relay (low drive)
7	Digital in 2
8	Digital in 1
9	Battery -
10	Battery -
11	Battery -
12	(Reserved)
13	12V sensor power
14	Analog ground
15	Analog ground
16	Battery +
17	Battery +
18	Battery +
19	(Reserved)
20	(Reserved)
21	Analog out 1
22	Analog in 2
23	Analog in 1

Exhaust Connection - 14 pin

Panel Connector Pinout

Pin	Connection
1	Knock Left
2	Precat TC + (yellow)
3	Precat TC - (Red)
4	Postcat TC + (yellow)
5	Postcat TC - (Red)
6	Precat O2 Htr - (C)
7	Postcat O2 Htr - (C)
8	Precat O2 Vs (B)
9	Postcat O2 Vs (B)
10	Knock Right
11	Precat O2 Htr + (D)
12	Postcat O2 Htr + (D)
13	Precat O2 Vref (A)
14	Postcat O2 Vref (A)

Connector Reference

Image	Plug Type	Sensor(s)	EMIT P/Ns
	2 pin metri-pack 150	Flywheel MPU	Body 15556 Wire Seal 15046 Terminal 15029 Clip 15555
	2 pin Deutsch DT	Oil temp thermistor Coolant temp thermistor (usually further down the harness)	Body 15127-0001 Lock 15127-0002 Terminal 15555-0002
	3 pin Metri-pack 150.2	Oil Pressure Sensor Manifold Pressure sensor	Body 15557-0006 Terminal 15555-0007
	3 pin metri-pack 150.2 flat	Hall sensor (330xB engines)	Body 15557-0001 Terminal 15555-0001
	4 pin metri-pack 150	Oxygen sensors (2), post catalyst is further along harness Threaded hall sensor	Body 15027 Wire seal 15046 Terminal 15029 Clip 15030 Boot 15026
	4 pin metripack 150.2	DPV (valve)	Body 15024 Terminal 15025 Boot 15023
	Amphenol MQS 6 pin	Throttle body connector	Body 15127 Wire seal 15129 Terminal 15128
	Ring terminal	Coil harness Starter solenoid +	15560
	Ampseal 8-pin white	ECU Coil connector	Body 15104-0005 Terminal 15555-0008
	Ampseal 8-pin black	ECU injection Connector	Body TBD Terminal 15555-0008
	Ampseal 23-pin white	ECU main engine harness connector	Body 15104-0003 Terminal 15555-0008
	Ampseal 23-pin black	ECU panel harness connector	Body 15104-0004 Terminal 15555-0008
	Ampseal 14-pin black	ECU exhaust harness connector	Body 15104-0006 Terminal 15555-0008