This sensor sends the ECU an output signal which corresponds to the
opening of the throttle valve. Using this output signal, the ECU
precisely controls the air/fuel ratio during acceleration, deceleration
and idling. The TP sensor and the throttle switch are combined as part
of an assembly. The switch signal turns ON only when the throttle is
opened to the idle position or at Wide Open Throttle (WOT) acceleration.
REMOVAL & INSTALLATION
( see Figures 2, 3, 4 and 5
Fig. 2: Disconnect the wire harness from the throttle
Fig. 3: Paint a matchmark on the sensor and throttle body for
ease of installation and adjustment
Fig. 4: Remove the sensor retainer screws
Fig. 5: Lift off the throttle position sensor
Disconnect the negative battery cable.
Disconnect the throttle sensor electrical harness.
Place a matchmark on the throttle position sensor and throttle
body mounting surface, so that during installation, the sensor can be
Remove the 2 screws securing the throttle sensor to the throttle
Remove the throttle sensor by pulling it in the axial direction of
the throttle shaft.
Remove the throttle sensor O-ring and discard.
Using a new throttle O-ring, install the throttle sensor, aligning
the matchmarks. Install and hand-tighten the retainer screw.
Connect the throttle sensor electrical harness.
Connect the negative battery cable.
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