Engine Code P0171 Diagnose and Repair with Confidence

Most everyone said the O2 sensors seldom are the reason for the code. Most all said look for a vacuum leak. The last thing I did was to replace ... I was able to get enough gas to get to a decent gas station to fill the tank. On my way home I got a check engine light and the code was P0171( ... A dirty or faulty MAF sensor can send incorrect information to the ECM, causing the engine to run lean and trigger the P0171 code. Faulty Fuel ... P0171 is for a lean mixture. The O2 sensor is detecting too much air/oxygen. This causes engine computer to open the injectors to stay open longer to add more ... P0171 is a lean code caused by a vacuum leak, mass airflow failure, faulty PCV valve, or low fuel pressure. I would start by checking all of the ... This code is mostly caused by a vacuum leak. The intake manifold is most likely the cause, especially on this engine. It could be lean under high load/demand conditions and fine at low load. Mixture lean/rich codes can't set until the O2 sensors are active and ... This trouble code indicates that the engine is running too lean, which can lead to various issues if left unchecked. For More Info visit us at: http://1aau.to/h/cnF/ Is your car or truck suffering from a weak or hesitating engine? Claim your FREE engine code eraser https://free.nonda.co​ ===== How to Fix P0171 =========== Engine Code P0171 Saving Repair Parts: MAF ...