Diagnostic Aids
- An intermittent may be caused by a poor connection, rubbed-through wire insulation or a wire broken inside the insulation. Check for poor connections or a damaged harness. Inspect the ECM harness and connector for improper mating, broken locks, improperly formed or damaged terminals, poor terminal-to-wire connection, and damaged harness.
- Throttle body - Check for objects blocking the DC motor or throttle bore, excessive deposits in the ETC passage and on the valve spring, and excessive deposits in the throttle bore and on the throttle valve plate.
- Acceleration pedal - Check for objects blocking the AP sensor or pedal arm with spring, excessive deposits in the acceleration pedal arm and on the acceleration pedal and lacking the pedal stopper rubber.