Here are the full instruction from ED on loader file:
License the ecu for use with Maestro, then flash one of the LC/NLS “loader” files. Then you can use the Maestro files for your tuning.
The 2 step/LC/NLS files are available now for all the North American Golf R/S3/GTI/A3 Maestro box codes.
After you update your flash software and Maestro, you need to do a full flash with one of the “Loader” files to enable the features.
On the DSG cars, the DSG launch limits will override the launch limits set in the ecu, so you need a stage 3 DSG file that removes the DSG launch control before that will work.
Here are the instructions:
Launch control:
Operation
Launch control RPM is controlled via torque control, (as with DSG controlled), fuel cut, or spark cut configured using launch_control_config in Maestro.
When using torque control, the stationary RPM limit is used to control launch RPM. This method will be smooth, just like stock, but will close the throttle.
When using fuel cut, the control will be rough, with the engine rev's oscillating, but will keep the throttle fully open. Fuel cut is handled using the standard ECU strategy, the control just indicates to the fuel cut function that all cylinders need to be cut. Spark cut will cut spark but not injectors.
Activate on MT:
- ESP fully disabled.
- Clutch depressed.
- Parking brake is not engaged.
Once the clutch pedal is released or vehicle speed is greater than Max vehicle speed for launch control launch RPM control will no longer be active.
Activate on DSG:
- ESP fully disabled.
- Brake pedal depressed.
- Selector lever in D/S/Tip.
- Parking brake is not engaged.
The conditions for launch on DSG apply, so car should be in sport and brake pedal sufficiently depressed, etc.
Once the brake is released or vehicle speed is greater than Max vehicle speed for launch control, launch RPM control will no longer be active.
Adjustment
Adjustment can be made with the accelerator pedal and brake pedal.
When using the pedals to adjust:
Activate on MT:
- Engine running.
- Parking brake engaged.
- Transmission in neutral.
- Clutch pedal not depressed.
Activate on DSG:
- Engine running.
- Parking brake engaged.
- Selector lever in P.
Pedal adjustment operation:
- Use the accelerator pedal to rev to the desired RPM.
- When desired RPM is reached, tap the brake.
- The MIL will flash twice indicating that the adjustment has been stored.
- Release the accelerator pedal.
Make sure the stationary rev limit set high enough in Maestro to not limit RPM adjustment during pedal based adjustment.
NLS:
NLS will use fuel cut or spark cut depending on config in Maestro to control engine RPM during shifts. When activated the system will take the current engine RPM, subtract NLS RPM offset, and control to this RPM until deactivated.
Fuel cut is handled using the standard ECU strategy, the control just indicates to the fuel cut function that all cylinders need to be cut.
Activated on MT:
- Accelerator pedal is greater than Minimum accel pedal for NLS.
- Vehicle speed is greater than Minimum vehicle speed for NLS.
- Clutch depressed.
Once the clutch is released, NLS control will stop.