28. Check CO%

With CONSULT-II 

1. Start engine and warm it up until engine coolant temperature indicator points the middle of gauge.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Select "ENG COOLANT TEMP" in "ACTIVE TEST' mode.
4. Set "ENG COOLANT TEMP" to 5°C (41 °F) by touching "DOWN" and "Qd".
5. Start engine and rev it (2,000 to 3,000 RPM) two or three times under no load, then run engine at idle speed.
6. Check CO%.
   1. Idle CO: 0.7 - 9.9% and engine runs smoothly. 

OK or NG 

OK : GO TO 31 REPLACE HEATED OXYGEN SENSOR 1 .

NG : GO TO 30. RECONNECT HEATED OXYGEN SENSOR 1 HARNESS CONNECTOR .