The goal of a carburetor is to mix just the right amount of gasoline with air so that the engine runs properly. If there is not enough fuel mixed with the air, the engine "runs lean" and either will not run or potentially damages the engine.
An engine runs by the combustion of a mixture of oxygen and gasoline. If this mix has too much oxygen, it is said to run lean. When the mixture has too much gasoline in relation to oxygen, it is running rich.
It could do. DOn't let it run lean. It's very uneconomical and bad for the engine.
P0171 System too Lean (Bank 1)
It means the Fuel/Air mixture is not correct. Too lean means the mixture has too much air and not enough fuel. If the engine idles rough but runs good under acceleration, suspect a leaking vacuum hose. If the engine runs perfectly suspect a defective MAF sensor.
Cars running lean
Could be sucking air into intake.
This might be from unproper jetting of the carb. It is most likely running to lean,this is why the pipe has turned yellow.When and engine runs lean it tends to run hotter
to lean = nish'an (נשען)
Fuel system running lean.
Lean Mean Thirteen has 486 pages.
Trouble code P0171 means:System too lean (Bank 1)
leaning on someone