Table of Contents

10.3 Logging Data with Mobile Dyno


Select the 'Channels/Mode' button. Choose 'Default'. The software will not continue if these channels are not selected.
Select the Auto Map icon.
Select 'Mobile Dyno' and click 'OK'.
Turn the ignition switch to 'IGNITION' and switch the run switch to 'RUN'.

Click 'Begin' on the Mobile Dyno panel.
A prompt will ask to configure the VCM. Select 'Yes'. All previously recorded data will be erased from the VCM. This will not affect any downloaded log files stored on the computer.
Unplug the VCM from the computer and the motorcycle (the VCM's power source). The next time the VCM gets power, it will begin recording.
When ready to ride, connect the VCM to the motorcycle diagnostics port. An LED on the VCM will blink, signifying that it is recording.
  • VCM-TR1 will log up to ~15 minutes
  • VCM-TR3/VCM-TR4 will log for hours
When finished logging, turn the motorcycle off for at least 15s. Connect the VCM back up to the computer.
Turn the ignition switch to 'IGNITION' and switch the run switch to 'RUN'.
Select 'End Session' on the Mobile Dyno panel.
Direct Link Logging Data with Mobile Dyno

The log file will automatically download and then load.

Once the logged data is displayed, click 'Create Map' to instruct Direct Link to review the data and suggest changes to the VE. These changes seek to reconcile the Desired AFR with the Measured AFR by adjusting the volumetric efficiency of the engine at points of disparity.

Choose the tables to be modified and the O2 sensors that were used. 'External O2' should be selected when an add-on sensor tool is connected to the VCM and configured in the software. 'Motorcycle O2' should be selected only if the motorcycle is provisioned with stock sensors and an external sensor option is not available.

A simulation tracer will animate. As data was collected by the system, there will be a report of the information collected:
  • Counts || Desired AFR
  • Front AFR || Rear AFR
  • Counts: The number of samples gathered and stored for that location on the RPM vs. TPS or RPM vs. MAP tables.
  • Desired AFR: The air to fuel ratio that was programmed to the ECU by the Program function. The tables are either RPM vs. TPS or RPM vs. MAP. The programmed values can be reviewed by opening the AFR table of the relevant calibration file.
  • Front AFR: The air to fuel ratio that was actually measured by the O2 sensor monitoring the front cylinder.
  • Rear AFR: The air to fuel ratio that was actually measured by the O2 sensor monitoring the rear cylinder.
Direct Link Tracer

Review and make changes to the Front VE Table and click 'Apply and Close' when finished to approve the changes.

Review and make changes to the Rear VE Table and click 'Apply and Close' when finished to approve the changes
Direct Link Rear Cylinder
To save, click the 'Save' icon ().
Now go back to the re-flash screen () and program the new calibration to the ECU.
NOTE: Make sure to BACKUP the original calibration so the motorcycle can be restored back to the original programming if desired.