ECU Connector Pinouts

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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

Ampseal-8.png
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

Ampseal-23.png

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

Ampseal-14.png
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
Conn-metripack-150.jpg 2 pin metri-pack 150 Flywheel MPU Body 15556

Wire Seal 15046

Terminal 15029

Clip 15555

Deustchdt.PNG 2 pin Deutsch DT Oil temp thermistor

Coolant temp thermistor (usually further down the harness)

Body 15127-0001

Lock 15127-0002

Terminal 15555-0002

Conn-metripack-1502-3.jpg 3 pin Metri-pack 150.2 Oil Pressure Sensor

Manifold Pressure sensor

Body 15557-0006

Terminal 15555-0007

Conn-metripack-1502-3f.png 3 pin metri-pack 150.2 flat Hall sensor (330xB engines) Body 15557-0001

Terminal 15555-0001

Conn-metripack-150-4.png 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

Conn-metripack-150-4f.jpg 4 pin metripack 150.2 DPV (valve) Body 15024

Terminal 15025

Boot 15023

Conn-mqs.jpg Amphenol MQS 6 pin Throttle body connector Body 15127

Wire seal 15129

Terminal 15128

Conn-ring.jpg Ring terminal Coil harness

Starter solenoid +

15560
Conn-ampseal8.jpg Ampseal 8-pin white ECU Coil connector Body 15104-0005

Terminal 15555-0008

Conn-ampseal-8b.jpg Ampseal 8-pin black ECU injection Connector Body TBD

Terminal 15555-0008

Conn-ampseal-23w.jpg Ampseal 23-pin white ECU main engine harness connector Body 15104-0003

Terminal 15555-0008

Conn-ampseal-23b.jpg Ampseal 23-pin black ECU panel harness connector Body 15104-0004

Terminal 15555-0008

Conn-ampseal14.jpg Ampseal 14-pin black ECU exhaust harness connector Body 15104-0006

Terminal 15555-0008