GEN2 Flying Lead Looms

Genuine MaxxECU GEN2 flying lead cable harnesses, available individually for building a new harness, expanding your current installation, or replacing an existing harness.
 
Rather than buying wiring you don't need, simply select the correct harness from the drop-down menu. MaxxECU divides the GEN2 TRACK and GEN2 RACE wiring across multiple ECU connectors, with each harness providing a different group of inputs, outputs, injector drivers, ignition outputs, CAN, lambda control, and other functions.
 
All harnesses are 3 meters long.
 
Harness Options
GEN2 Harness 1 – TRACK / RACE
The primary engine-management harness and the starting point for most installations.
Includes wiring for:
PULSE 1–4
Ignition 1–4
Injector 1–4
Engine Ground
Sensor Ground
5V Sensor Supply
CAN 1
GP Outputs 1–5 – Ground
12V Supply 1
Analog Inputs AIN 1–5
 
GEN2 Harness 2 – TRACK / RACE
Expands either the GEN2 TRACK or GEN2 RACE with additional engine-control I/O, knock control, and the first onboard wideband lambda connection.
Includes wiring for:
Ignition 5–6
Injector 5–6
GP Output 6
Lambda 1 + GPO 7
Analog Inputs AIN 6–16
GP Outputs 13–14 – H-Bridge 1
12V Supplies 2–3
Knock Inputs 1–2
This harness can be used with both the GEN2 TRACK and GEN2 RACE
.
GEN2 TRACK Harness 3 
The third harness specifically for the GEN2 TRACK REV2, unlocking the remaining TRACK-specific I/O and second onboard lambda connection.
Includes wiring for:
GP Outputs 15–16 – H-Bridge 2
Ignition 7–8
Engine Ground
Lambda 2 + GPO 8
GP Outputs 9–12 – 12V
Analog Inputs AIN 17–24
Injector 7–8
 
GEN2 RACE Harness 3
Harness 3 for the GEN2 RACE adds the additional injector and ignition channels needed for larger-cylinder-count engines, along with additional analog inputs, power outputs, H-Bridge control, and the second onboard lambda connection.
Includes wiring for:
GP Outputs 15–16 – H-Bridge 2
Ignition 7–12
Engine Ground
Lambda 2 + GPO 8
GP Outputs 9–12 – 12V
Analog Inputs AIN 17–24
Injector 7–12
 
GEN2 RACE Harness 4
Harness 4 unlocks another group of high-end GEN2 RACE functions and is especially useful on complex motorsport installations requiring additional trigger inputs, EGT monitoring, CAN communication, or additional injector channels.
Includes wiring for:
PULSE 5–8
EGT 1–8
CAN 2
Injector 13–16
 
Which Harness Do I Need?
For a basic installation, Harness 1 contains many of the primary engine-management connections.
As the installation becomes more complex, Harnesses 2, 3, and 4 unlock additional functions available within the GEN2 TRACK or GEN2 RACE ECU.
 
You do not necessarily need every harness to operate the ECU. Select the harnesses required for the inputs, outputs, cylinders, lambda sensors, knock sensors, CAN networks, and other functions being used in your particular installation.
 
If you're building a complete harness from scratch, these genuine MaxxECU flying-lead harnesses make the process considerably easier while maintaining the proper ECU-side connectors, terminals, wire sizing, and factory-style construction.
 
Drop-Down Options
GEN2 Harness 1 – TRACK / RACE
GEN2 Harness 2 – TRACK / RACE
GEN2 TRACK Harness 3 – REV2
GEN2 RACE Harness 3
GEN2 RACE Harness 4