P0171 code (Full Version)

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P0171 code

2001sonata -> P0171 code (9/6/2007 7:35:57 PM)
I have a 2001 Sonata with the 2.4 4 cyl, auto, it has been giving off an engine code of P 0171, running lean, Any ideas what needs to be replaced or repaired? The car idles very rough when first started and sometimes has a noticeable miss at around 35-40 mph thanks

lighthouse1 -> RE: P0171 code (9/14/2007 6:01:39 PM)
check the maf sensor (mass air flow) located in the fresh air intake tube between filter and trottle body -they have problem with them and will set lean mixture trouble codes

Freddie -> RE: P0171 code (10/3/2007 7:04:23 PM)
Your PVC hose from the valve cover to the intake is split.

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