Lean codes after custom tune? - Power Hungry Performance Forum

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Lean codes after custom tune?

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1997 to 2003 F-150 4.2L, 4.6L, and 5.4L equipped F-150s

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Mon, April 16th, 2012, 08:32 PM

Dsouthtexas Dsouthtexas is offline

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Join Date: Sep 2011

Location: Houston, TX

Posts: 7

Lean codes after custom tune?

I wanted to know if its normal to get lean codes after loading a custom 87 performance tune. It drives great with the tune but after a couple of days i got two trouble codes stating that its running lean on bank 1 and 2.

Thanks,

Luis

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