Axiom 2WD V6-35L Throttle Position Sensor Description
Throttle Position Sensor: Description and Operation
The throttle position (TP) sensor is a potentiometer connected to the throttle shaft on the throttle body. The PCM monitors the voltage on the signal line
and calculates throttle position.As the throttle valve angle is changed (accelerator pedal moved), the TP sensor signal also changes. At a closed throttle
position, the output of the TP1 sensor is low. As the throttle valve opens, the output increases so that at wide open throttle (WOT), the output voltage
should be above 92% (Tech 2 Display).
The PCM calculates fuel delivery based on throttle valve angle (driver demand).A broken or loose TP sensor may cause intermittent bursts of fuel from
an injector and unstable idle because the PCM thinks the throttle is moving.
