Diagnostic Odyssey Delving into Engine Code P0171

The P0171 trouble code indicates that your vehicle's engine runs too lean on bank 1. This means the air-fuel mixture contains too much air and not enough fuel. Engine code p0171 = System too Lean (Bank 1) · The MAF (Mass Air Flow) Sensor is dirty or faulty. There is an issue with some Vehicles where the ... This code is mostly caused by a vacuum leak. The intake manifold is most likely the cause, especially on this engine. Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/433/k/scan-tools-code-readers Your check engine light is on, and you got the code ... Your vehicle may get the P0171 code due to dirty sensors or a faulty fuel pump. Specifically, mass airflow sensors are known to trigger this error code, as this ... What is the cost to resolve a P0171 code? ... This code will require a diagnostic check, which will run about $100 depending on the time it takes to find the ... What Does Code P0171 Mean? The P0171 is a diagnostic trouble code (DTC) that means, on the first bank of the engine, the fuel system is running weak or a vacuum ... P0171 means bank 1 is lean and is near the limits of what the PCM can adapt to. This code and its sister, P0174(Bank 2) are common sights on ... The check engine light came on after I washed the engine. I did not use high pressure. I just used a scrub brush with soap and cleaned everything real good. How I diagnose and troubleshoot an engine P0171 Code: System Too Lean (Bank 1) A lean condition exists if the engine is getting more air ...