My CEL is on, so I went to Auto Zone today so I know what error codes there are, well, it had two,
P0171 and P0174
meaning:
P0171 = System too Lean (Bank No. 1)
P0174 = System too Lean (Bank No. 2)
Could any1 tell me what this means and how I can fix that? thanks :-x
P.S.: Its a 99 Ford Contour SVT
