lean bank 2

Discussion in '96-04 - 4V Specific' started by spank 141, Apr 3, 2015.

  1. spank 141

    spank 141 New Member

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    I have a check engine light for a lean bank 2 and wanted to know what the computer changes. If it is just the fuel maps or does it also change the timing and how much does it effect a custom tune?