Unleash the Power of Your Engine A Comprehensive Guide to P0171

P0171 is a "System too lean" error code. This is caused by the engine receiving more air than fuel so it compensates by adding more fuel ... 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 P0171 OBD-II code means that, on the first bank of the engine, the fuel system is running weak or a vacuum leak exists near this side of the engine. In this video, I show you how I troubleshoot a Check Engine Light (CEL) / Diagnostic Trouble Code (DTC) P0171, System Too Lean Bank 1. The ECM has the power to adjust the amount of fuel injected if an increase in the amount of air being fed into the engine is detected. However, ... Recently I was driving my car home from a 2hr road trip when my "Check Engine" Light came on. The code that popped up said that my system was ... 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 ... 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( ... Chevy / GM P0171 or P0174 System To Lean Bank 1 Bank 2 · Check Engine Light? · Engine Fault Code P0171 - System Too Lean Bank 1! · P0171 Trouble ... It came up "P0171 Bank 1 SysToo Lean" and the technician explained to me that I had a vacuum leak somewhere.