Operation CHARM: Car repair manuals for everyone.

Checking the Throttle Position Sensor

Tests 1 - 4:




SYMPTOM
CHECKING THROTTLE POSITION SENSOR CALIBRATION

POSSIBLE CAUSES
- TPS voltage change not a smooth transition
- TPS voltage above 1.5 V with throttle closed
- Throttle cable and body binding or restricted
- TPS voltage below 3.4 V at wide open throttle