Harness the Power of Your Engine Decoding Engine Code P0171

It is a code related air/fuel mixture that the engine is creating. To lean means that there is too much air compared to the amount of fuel being ... A P0171 check engine light code is set when the computer has reached a rich calibration limit and can not add enough fuel to maintain the correct mixture. P0171 means your car is running lean,stoichiometric ratio is not balanced.this means your vehicle is taking in more air than fuel.most times it ... If you're reading this, you've likely seen the OBD-II scanner flash the P0171 fault code – an indication that the engine control module (ECM) ... 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. 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 check engine code was P0171, a lean fuel trim. He cleared the code and checked for air leaks and said the car needed a new PCV valve and he installed one. P0171 is a code indicating that the engine is experiencing a leaner fuel mixture than what's commanded (too much air or not enough gasoline). Your problem is more than likely an air leak. That code means you are running lean period. There is only one bank...so disregard the idea of a bank two.