Diagnostic Procedure 1 — High Idling after Warm-up

CHECK AIR REGULATOR. When pinching the air regulator hose, does the engine speed drop?

CHECK INTAKE AIR LEAK. 1. Select "SELF-LEARNING CONT" in "ACTIVE TEST" mode. 2. Clear the self-learning control coefficient by touching "CLEAR". 3. Does the engine speed drop? — OR — 1. Disconnect exhaust gas sensor harness connector. 2. After racing engine at 2,000 rpm under no-load for about 30 seconds, does the engine speed drop?

CHECK THROTTLE LINKAGE. 1. Check that throttle linkage moves smoothly. 2. Confirm that throttle valve both fully opens and fully closes.