P0171

Step 1 - 3:

Step 4 - 6:

DTC P0171 - FUEL TRIM MALFUNCTION (A/F TOO LEAN)

DTC DETECTING CONDITION:
Two consecutive driving cycles with fault

TROUBLE SYMPTOM:
- Erroneous idling
- Engine stalls
- poor driving performance

CAUTION: After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode.