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Jb4 and all dash lights

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  • Jb4 and all dash lights

    Ok I have installed my new jb4 on my kia k5 gt line . I have a check engine light and most of my dash lights are on. I have checked all connections and I have verified they are correct. When I disconnect the maf the lights go away. Any thoughts on what could be going on?

  • #2
    Is the firmware up to date?
    Burger Motorsports
    Home of the JB4 the worlds most popular turbocharged tuning system!

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