P0171

DTC P0171 FUEL SYSTEM TOO LEAN

WIRING DIAGRAM

DETECTING CONDITION

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.

1) Turn ignition switch OFF.
2) Clear DTC with ignition switch ON.
3) Check vehicle and environmental condition for:
Indication of fuel level meter in combination meter: 1/4 or more
- Altitude (barometric pressure): 2400m, 8000ft or less (560mmHg, 75kPa or more)
- Ambient temp.: -10°C, 14°F or higher
- Intake air temp.: 70°C, 1580F or lower
4) Start engine and drive vehicle under usual driving condition for 5min. or longer and until engine is warmed up to normal operating temperature.
5) keep vehicle speed at 30-40mph, 50-60km/h in 5th gear or "D" range for 5min. or more.
6) Stop vehicle (do not turn ignition switch OFF).
7) Check pending DTC in "ON BOARD TEST" or "PENDING DTC" mode and DTC in "DTC" mode.

Testing Procedure:

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INSPECTION