Engine Code P0171 Unveiled A Step-by-Step Troubleshooting Manual

After doing some Google searches, I found that code means air fuel ratio is too lean. So the measured af ratio has less fuel/more air than what ... Code P0171 stands for “System Too Lean (Bank 1)”. This diagnostic trouble code can happen for a number of reasons related to combustion inside your engine. The ... A code P0171 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty. 2nd Generation (GE 08-13) - Engine light P0171 - Error code P0171 refers to lean Air/Fuel mixture in Bank-1. The cause of the problem can be ... 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 ... Basically they are dumping fuel at closer to max duty cycle than when the engine is warm. If it is not able to deliver enough fuel, it might be ... Engine Fault Code P0171 - System Too Lean Bank 1! [Symptoms, Causes, and Fixes] · Comments133. This is one of the most common trouble codes in V-6 and larger engines. P0171 is a "System Too Lean (Bank 1)," which is triggered by the first exhaust ... P0171 and 174 are related to the injectors on Banks 1 & 2 reporting a lean condition, meaning they aren't supplying enough fuel. A faulty MAF ... The lean code P0171 is in most cases set due to eaither a vacuum leak in and around the intake and or in most cases if you dont have a vacuum leak, its usually ...