Throttle Position Sensor (TPS)
A sensor that measures the angle of the throttle plate to control air intake.
The TPS sends voltage signals to the ECU corresponding to throttle opening. This data influences fuel delivery, ignition timing, and transmission shifts. A faulty TPS can cause hesitation, stalling, or erratic acceleration. Testing involves monitoring signal voltage with a scan tool or multimeter while moving the throttle. Smooth voltage changes confirm sensor health. Accurate TPS readings ensure smooth engine performance and responsiveness under all driving conditions.
Related Diagnostic Guide
This topic is part of CHEPQ’s system-level diagnostic framework.
For a broader understanding of how this component is analyzed in real-world diagnostics, refer to the following guide:
Applying This Knowledge in Practice
The diagnostic principles discussed above are commonly applied in real-world vehicle diagnostics. To put this knowledge into practice, explore professional automotive diagnostic tools designed to support system testing, fault analysis, and troubleshooting across modern vehicles.