Conquering Engine Code P0171 A Blueprint for Fuel System Success

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 ... PCM & Fuel Systems - Engine Code P0171 - #P0171- According to the book it means System adaptive feul too lean (bank 1) . Engine Fault Code P0171 - System Too Lean Bank 1! [Symptoms, Causes, and Fixes] · Comments133. Based on the information you provided, it seems like your vehicle is displaying a P0171 error code, which typically indicates a problem with the ... p0171 code (lean bank 1) ... The O2 sensor only cuts in (closed loop with ECM) once the engine has warmed up and coolant temp has exceeded 158F/ ... The most common cause that we see at the dealer is a MAF sensor, especially if you have a K&N or other oiled air filter. O2 sensors can also ... 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. When I Googled it, it basically said the car is either getting too much air or too little fuel and the culprit could be a number of different ... 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 ... 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 ...