Check for vacuum leaks.
Sounds lean.
either its running to lean or you have a bad exhaust valuve
Code P0174 is System too Lean (Bank 2)
engine is running lean while eccelerating
Engine is running lean.
P0171 System too Lean (Bank 1)
The engine is running lean www.obd-codes.com this will help .
It's lean. You have to figure out why.
Running Lean Limited is the business or management consultancy business based in BasingstokeIn automotive terms it means that the engine is not getting as much gas as it should.In running, it refers to body mass.
It's lean. Best to check the carb and all vacuum lines for leaks and blockage.
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.
Cars running lean