I'm betting the computer is still showing a MAF sensor malfunction from it being installed backwards. Unplug the battery again for 5-10 minutes and press the brake pedal for a few seconds (to use up any remaining juice in any capacitors). That should clear the computer. Then connect it back, start the engine and see if you still have the lights on.

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2007 SR5 Crewmax 5.7L 4x4
Mods: nerf bars, Truxedo tonneau, radar detector power, fog lights, black billet grille, rear differential breather, parking sensors, Line-X, power tailgate lock, hood safety latch mod, one off driving lights behind grille, Pioneer NAV w/ OEM camera, Flowmaster 50 SUV dual/dual, blue LED dash lights, Volant CAI
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