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Genel OBD2
🟡 Medium
Genel OBD2
P0174
System Too Lean (Bank 2)
The P0174 diagnostic trouble code (DTC) indicates a System Too Lean (Bank 2). This fault impacts the fuel delivery system, where precise pressure and volume are critical for combustion. This anomaly was detected during the ECM's internal diagnostic self-test, indicating that the system is unable to maintain steady-state operation.
Brand
Genel OBD2
Fault Code
P0174
Severity
🟡 Medium
Models
Tüm marka ve modeller
🛠️ Diagnostic Overview
Difficulty Level
🛠️🛠️
Medium (Moderate)
Estimated Time
⏱️ 1-2 Hours
🧰 Required Tools
- ✓ Smoke Leak Detector / Vacuum Gauge
- ✓ Electrical Contact Cleaner Spray
⚠️ Possible Causes
- Vacuum leak on bank 2 intake
- Dirty MAF
- Fuel delivery issue to bank 2
🔧 Recommended Fixes
- Same as P0171 — focus on bank 2 side
🚗 Commonly Affected Vehicles
🏭 Genel OBD2 – Other Common Fault Codes