Cannondale 2002 Blaze, Owner'S Manual

Page: 127 / 180

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Throttle position sensor (TPS)
The TPS is a small, black plastic sensor attached to the
throttle plate shaft and located on the right side of the
throttle body. The TPS is a potentiometer that gives a
reading in the fully-closed position and all other throttle-
plate opening angles are calculated using the fully-closed
position as a base. Throttle-plate angle is used by the ECM
to determine fueling requirements for all throttle positions.
The signals that the TPS sends, informs the ECM of not
only the position of the throttle plate, but the speed with
which it is being opened or closed. The engine load is
determined from the TPS and engine speed (rpm). The
voltage output from the TPS increases proportionately as
the throttle is opened.
Whenever the throttle body is serviced the fully closed
and fully open throttle plate openings must be recorded in
the ECU (MC500 or MC1000). For MC500 models, this
procedure is accomplished with a special diagnostic tool.
For MC1000 models, a special Windows-based software
The flywheel cover has been removed for this photo to show the
sensor tip.
1. Crankshaft position sensor
2. Flywheel tooth
a. Gap
See “2002 Model Specifications” on page 161
1
2
a