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4.8 running too lean

Old Dec 12, 2012 | 10:11 PM
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Default 4.8 running too lean

So i got a check engine light, the superchip tuner said i was running to lean code p0174 bank 2... i know for fact i need to change the fuel filter, any other suggestions to run more fuel with that change. thank yall

2002 silverado 4.8
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Old Dec 12, 2012 | 10:24 PM
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fuel pump isn't getting weak is it?
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Old Dec 13, 2012 | 10:22 AM
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Originally Posted by dmelvin
fuel pump isn't getting weak is it?
No I don't think so? I don't hear it whining or anything
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Old Dec 13, 2012 | 10:32 AM
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That code could also be a air leak anywhere past the MAF, intake manifold, exhaust manifold would be a good place to look into.
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Old Dec 13, 2012 | 10:36 AM
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could be a dirty MAF also..
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Old Dec 13, 2012 | 02:41 PM
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ok cool thanks
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Old Dec 14, 2012 | 12:23 PM
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Check your intake gaskets too. The factory ones were prone to leaking. I have had to change them on my truck and my dads truck as well.
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