I believe it has to do with locking/unlocking your TCC in your Tranny.. In my truck when we yanked the computer and put in carb, my TQConverter had a wire that ran up to my dash so I could turn the OD on and off, since the computer was no longer in the loop..
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// 1998 GT-Steeda Conversion \\ -- Sold
// Now own 2001 F-150 SuperCrew 5.4L \\
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