P0172

DTC P0172: System Too Rich

DTC Detecting Condition And Possible Cause:

DTC Confirmation Procedure

WARNING:
- When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
- Road test should be carried out with 2 persons, a driver and a tester, on a level road.

NOTE:
Check to make sure that the following conditions are satisfied when using this "DTC Confirmation Procedure".
- Intake air temperature at start: -8 - 60 °C (18 - 140 °F)
- Engine coolant temperature at start: -8 - 95 °C (18 - 203 °F)
- Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more)
- Intake air temperature: -8 °C (18 °F) or higher
- Engine coolant temperature: 110 °C (230 °F) or lower
- Fuel level indication on meter cluster: 1/4 or more

1. Connect scan tool to DLC with ignition switch OFF.
2. Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool and warm up engine completely.
3. Increase vehicle speed to 50 - 60 km/h (30 - 40 mph).
4. Keep driving above vehicle speed for 3 min. or more.
5. Stop vehicle and check DTC and pending DTC by using scan tool.

Step 1 - 9:

DTC Troubleshooting