It means the Fuel/Air mixture is not correct. Too lean means the mixture has too much air and not enough fuel. If the engine idles rough but runs good under acceleration, suspect a leaking vacuum hose. If the engine runs perfectly suspect a defective MAF sensor.
Trouble code P0174 means: System too lean (Bank 2)
Trouble code P0174 means: System too lean (Bank 2)
what does system to Lean Bank 1 on 740iL 2001 means
Code P0174 is System too Lean (Bank 2)
Trouble code P0171 means: Fuel Trim System Lean (Bank 1
po171--- system to lean (bank # 1)
Trouble code P0171 means: Fuel Trim System Lean (Bank 1)
Trouble code P0174 means: System too lean (Bank 2)
System to lean, bank 1. Check for vacuum leaks under the hood.
Trouble code P0174 means: Fuel Trim System Lean (Bank 2)
Trouble code P0174 means: System too lean (Bank 2)
Trouble code P0171 Means: System too lean (bank 1)