P0172

DTC P0172 : System Too Rich




DTC Detecting Condition and Trouble Area

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".
- Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg (75 kPa) or more)
- Intake air temp.: -8 degrees C (18 degrees F) or higher
- Engine coolant temp.: 110 degrees C (230 degrees F) or lower

1. Connect scan tool to DLC with ignition switch turned 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 pending DTC by using scan tool.

Step 1 - 9:

DTC Troubleshooting