Throttle Position (TP) Sensor

Faults in TP sensor or circuit should set a service code. See QUICK TEST in TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE section. If no service code has been set, see CIRCUIT TEST DH in TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE section for additional sensor testing and specifications. Ensure none of following conditions exist:

• Binding throttle linkage.
• TP sensor loose or not seated properly.
• Throttle plate not fully closed.