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The Autotune feature utilizes your stock O2 sensors by setting your air
fuel ratio table into closed loop operation and calibrating the front and rear
volumetric effi ciency tables (aka VE tables). Autotune will use your selected
base map as a starting point to begin calibrating from. Your Finished Autotune
map will be fl ashed into a separate map slot, leaving the base map in it's
original slot. This feature is typically used if there is not an appropriate
base map for your setup, there is fi ne tuning needed for aftermarket engine
components, or there are issues with a base map.
NOTE: Vance & Hines recommends running 1-2 tanks of fuel with your base map
before considering the Autotune feature. After each fl ash, fuel trims on the
ECU are cleared, and small adjustments/improvements will be made during
this period. Autotune would only be used if there is fi ne tuning needed after
1-2 tanks of fuel with a base map.
NOTE: Be advised that while Autotune is active the bike will not perform optimally.
The AFR table is in closed loop, and the cranking fuel, acceleration
enrichment, and deceleration enleanment features are turned off. This may
translate into poor cold start performance, erratic idle, poor throttle response,
and general ride quality issues. These will resolve once you 'Finish' the
Autotune. Letting the bike fully warm-up before riding while Autotune is
active will help to diminish some of these symptoms.
NOTE: Autotune cannot be fl ashed while the bike is running
INITIALIZING AUTOTUNE
1.
Go to 'Autotune' from the main menu
2.
Select 'Quick Setup'
•
'Advanced Setup' should only be
used if operating the bike on a
dynamometer, or directed to by V&H
3.
Select a base map to start Autotune from.
Be sure to select the correct map slot
number that is appropriate for your setup.
•
To verify which map is in a given slot,
go to the 'View/Edit Maps' section and
note the appropriate slot number
4.
Follow on screen prompts to fl ash bike
AUTOTUNE
11
INSTRUCTION
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