Lean codes

Discussion in 'General Discussions' started by Sl33p3r, Nov 15, 2011.

  1. Sl33p3r

    Sl33p3r Banned

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    Ok I got p0171 and p0174 lean codes. I replaced the dpfe, cleaned the maf, and fixed 2 vacuum lines. But the codes came back I don't know what to do now. Could it be the intake? And would my tune still work good with stock intake?


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  2. ak_cowboy

    ak_cowboy Penguin Hunter

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    Get rid of the intake or the tune. I"d return it to stock until you can get some custom tunes from Mike
     
  3. supercrewzn

    supercrewzn Full Access Member

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    I was having lean codes. I replaced the fuel pump and put the stock intake back on and no issues now. I'd put the stock intake on and see if they go away.
     
  4. Sl33p3r

    Sl33p3r Banned

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    I mean the truck don't run bad it runs fine. But we got emissions here. I'll grab a air filter tomorrow and put the stock intake on it shoots the codes on stock tune too btw. It feels like it's getting enough fuel too. My uncle has a lean code that comes when it's cold out.


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  5. supercrewzn

    supercrewzn Full Access Member

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    Mine ran fine also. Just threw the codes.
     
  6. ak_cowboy

    ak_cowboy Penguin Hunter

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    The only way you can tell how she's running is to check the plugs. Toss the stock intake on and call it good.
     
  7. iowaredneck

    iowaredneck Administrator

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    get rid of that intake and that should help you
     
  8. Raevsky97

    Raevsky97 bagged 97 f150

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    try some fuel injector cleaning 2
     
  9. bobkyle2

    bobkyle2 BAMF BISHESSSS!!!

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    If the stock intake doesnt do it.... I would check the fuel pressure...And check the intake gaskets...

    Start the engine and spray carb cleaner all around the intake manifold... If the idle changes where you spray there is a leak there.
     
  10. Sl33p3r

    Sl33p3r Banned

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    I was gonna ask that lol.


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