Checking the Throttle Position Sensor

Tests 1 - 2:

Tests 3 - 5:

SYMPTOM
CHECKING TPS CALIBRATION

POSSIBLE CAUSES
- TPS wiring harness & connector intermittent problem (RPM change)
- TPS wiring harness & connector intermittent problem (Voltage change)
- TPS wiring harness & connectors observable defect
- Throttle position sensor (voltage change not smooth)
- TPS (Voltage 1.5 volts or above)
- Throttle position sensor out of specification