P0171 code

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P0171 code

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P0171 code - 9/6/2007 7:35:57 PM

2001sonata

Posts: 1
Joined: 9/6/2007
Status: offline

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

Post #: 1

RE: P0171 code - 9/14/2007 6:01:39 PM

lighthouse1

Posts: 20
Joined: 6/7/2007
Status: offline

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

(in reply to 2001sonata)

Post #: 2

RE: P0171 code - 10/3/2007 7:04:23 PM

Freddie

Posts: 19
Joined: 10/3/2007
Status: offline

Your PVC hose from the valve cover to the intake is split.

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Hyundai Technician since 1989

(in reply to lighthouse1)

Post #: 3