Calibrations - Cannondale 5002401 Service Manual

the progress indicator. When the send is com-
plete, the Send complete prompt will display, click
OK.
Click Cancel and the "From File" values will not
be sent. They will remain in the currently open
engine calibration file.
The Select TPS/Inj Calibrations window
10. Power-up the vehicle ECU and click on the
MONITOR ECU Parameters button to display
the ECU Monitor window.
Find the "Throttle (%) Open value." Make
sure the ECU parameters display is in the
Continuous mode.
Adjust the idle adjustment screw so that the
"Throttle (%) Open" value increases by 3. For
example, if the value was 2.3 with the throttle
plate fully closed, turn the adjuster until the
value reads 5.3. If you do not open the throttle
plate the engine may not have enough air to
idle. Opening the throttle plate 3% should be
enough to achieve idle.
11. Start the engine and allow to idle normally
until the vehicle
temperature (70°C). Fine tune the idle setting
as specified for the vehicle.
to reach operating
37 37

CALIBRATIONS

Updating throttle body and fuel injector

calibrations

The Update Calibrations window enables you to
calibrate or "set" the vehicle specific variables which
are included in the engine calibration file data:
Throttle body leakage (offset), fuel injector flow rate,
and injector offset. These variables enable tuning the
installed map to compensate for slight manufac-
turing variations in each. The numeric values for
these variables are determined when the vehicle is
dyno-tested the factory and loaded to the calibration
file.
When a throttle body or fuel injectors are replaced -
the calibration information are packaged with the
new parts so that service technicians can update the
vehicle.
The calibration numeric values are part of the
"map" file and displayed in the main window.
NOTE :
When a new engine calibration file "map" is sent to
the ECU the software will prompt to change the
values or use the current values stored in the old
map.
• "Throttle Body Leakage" (also called Throttle
Body Offset)
(Input range 0 - 100)
The equivalent amount, in percent, of throttle
opening required on a "perfect" throttle body to
match the air flow of the vehicle's throttle body
8/14/02