Barometric Pressure Sensor; Throttle Position Sensor (Tps) - Cannondale 5002401 Service Manual

BAROMETRIC PRESSURE SENSOR

The barometric pressure sensor is housed within
the ECU. Air pressure within the airbox is transferred
to the ECU by a narrow hose. Air pressure infor-
mation is used to adjust the amount of injected fuel to
match the prevailing conditions. The sensor is not
user serviceable. If no external problems are found
with the hose or the hose routing end points, and a
barometric pressure sensor fault persists, the ECU
will have to be replaced.
NOTE :
When performing tests, start by checking the hose
routing from the ECU to the airbox. The routing
may be interconnected with other devices. Be sure
to check all vacuum/pressure routing hoses for
damage.
Dynamic Test - ECU Monitor
1. To test, determine the barometric pressure at
elevation in the operating area.
2. Read the reported sensor data with the Cannon-
dale Diagnostic and Maintenance Tool. This value
is reported at the "Airbox Pressure (kPa)" field in
the ECU Monitor window. Refer to "ECU Monitor"
starting on page 39.
3. Compare the known value with the one reported
by the software tool. If the comparison of the
actual value and the reported value results in a
wide disparity, and no other faults are present and
engine trouble remains, consider replacing the
ECU.
NOTE :
When comparing the actual barometric pressure
reading and the one reported through the
software, be sure to convert to equivalent units
(kPa).
Electrical_EFI Service Manual.fm
© 2002 Cannondale Corporation - All Rights Reserved

THROTTLE POSITION SENSOR (TPS)

1. TPS Sensor
2. Throttle Body
3. Harness connection point
The throttle position sensor (TPS) is a rotary poten-
tiometer attached to the end of the throttle plate shaft
on the right side of the throttle body.
Fueling requirements are calculated by the ECU for
changing throttle positions.
The fully closed and fully open throttle positions
(interpreted by the minimum and maximum voltage
read through the sensor) are stored as numeric
values in the ECU.
NOTE :
Anytime the throttle body is serviced or the sensor
is removed or replaced, the min/max values must
be re-read into the ECU using the Update
Calibrations window of the tool.
Use the Cannondale Diagnostic and Maintenance
Tool.
Refer to ""Throttle Body Leakage" (also called
Throttle Body Offset) (Input range 0 - 100) The
equivalent amount, in percent, of throttle opening
10