What does it mean when engine Bank 2 is too lean?
What does it mean when engine Bank 2 is too lean? A lean condition is brought about by an imbalance in the air to fuel ratio due to either insufficient fuel (from, say, a weak fuel system) or excessive air entering the engine. The bank 2 portion indicates that the problem is concentrated on the side of the engine opposite the #1 cylinder. The error codes for these conditions are P0171 and P0174. What does it mean when your engine is too lean? System Too Lean (Bank 1) What the P0171 code means The P0171 OBD-II code means that, on...