I want to order the Diablo Delta chip, but I cant find the computer box code. I tried following the suggestions from Motorhaven, but im not sure I found the right code. The only thing I could find was a sticker wrapped around some wires, but there is 3 different number, letter combonations on it. They are; F4TB, 12A581 and P260F. The sticker is white with a green stripe on the right side, along with the letters GL in the green stipe.

The second place I looked was under my dash on the drivers side, but there I only found a single wire with the following code: F4TF-15603-AA.

Thanks!!

 

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All of those are part numbers. The code you're looking for is on the computer box, 3 letters followed by one number. You didn't post what the vehicle is so I can't tell you where to find the computer.