S&S Cycle USB Magneti Marelli Style VFI (Variable Fuel Injection) Module and ProTune II Software User Manual
Page 9
9
Loading a Calibration
In most instances, the VFI module will be pre-programmed. If the module included in this kit has not been programmed, this will be indicated by a
label on the VFI module. If there is a need to program the VFI module, proceed with the following steps:
1- Connect to the VFI module.
a- Using a standard USB A to 5-pin Mini b cable, connect the mini-USB port on the case of the VFI module to the USB port on the PC.
b- Open ProTune II by double-clicking the ProTune II icon on the desktop. The lower-right corner of the ProTune II window contains a
communication status box. When there is no ECM (Electronic Control Module referring to the VFI module) communication this box will
flash between blue and black and alternate between messages No ECM on USB and Checking USB.
c- Turn the ignition switch of the motorcycle to on and set the run/stop switch to “run”. Do not start the motorcycle at this time.
d- The communication status box in the lower-right corner of ProTune II will illuminate green to show that ProTune II is communicating with
the VFI module. If it does not illuminate green see the Basic Troubleshooting section below.
2- Sending a Calibration file to the VFI module.
a- From the File menu of ProTune II, select Send all data to ECM… or click on the motorcycle icon in the upper-left corner of the screen.
b- A window will open showing the list of calibration folders for each type of ECM. Open the folder "USB Port Magneti Marelli® Style ECM" to
view the available files for this ECM. Select the calibration from the list that most closely matches the vehicle setup and click Open to start
the calibration download process. Do not switch off power to the ECM at this time.
c- After the calibration has loaded a message will appear advising you to cycle power on the ECM for at least 15 seconds. Select OK on the
message and turn the key off on the motorcycle for at least 15 seconds.
3- The VFI module calibration is now complete. Install the o-ring and port cover on the VFI module using the 2 screws provided. This is required to
protect the VFI module from the elements.
Figure 12
Figure 13
Figure 14