What does code P0174 mean?
Lean air fuel mixture condition detected on bank 2
OBD-II Code
P0174 — System Too Lean Bank 2
Lean air fuel mixture condition detected on bank 2
Common symptoms
- Hesitation
- low power
- lean mixture
- increased fuel consumption
Possible causes
- Vacuum leak on bank 2
- dirty MAF sensor
- low fuel pressure
Initial recommendation
Check for air leaks, clean MAF sensor and verify fuel pressure.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0174 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more codes