Throttle Position Sensor
Ensure none of following conditions exist:
- Binding throttle linkage.
- Throttle Position (TP) sensor loose or not seated properly.
- Throttle plate not fully closed.
Faults in TP sensor or TP sensor circuits should set a Diagnostic Trouble Code (DTC). See QUICK TEST in SELF-DIAGNOSTICS - B2300, B2500, B3000, B4000 & TRIBUTE article. If no DTCs are present, see TEST DH under SYSTEM TESTS in SELF-DIAGNOSTICS - B2300, B2500, B3000, B4000 & TRIBUTE article for additional TP sensor testing and specifications.