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lean codes

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Old September 11th, 2013, 9:35 PM
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Default lean codes

I keep getting p0171 and p0174 codes.
Replaced fuel pump and filter.
Pvc valve and gromet.

st ftrm1 = .8 lt ftrm1 = 25.0
st ftrm2 = -.8 lt ftrm2 = 22.7

o2s11 = .665 02s12 =.635
02s21 = .740 02s22 = .325

Cant find a vacuum leak?
what else am i missing?
thanks, Jeremy
Old September 11th, 2013, 9:48 PM
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Year, make , model??????
Old September 11th, 2013, 11:19 PM
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1996 gmc 1500 4x4 5.7
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