exactly how do you get the pcm to recognize that you wired the performance shift up. i did it today in my 02 gtp but idk how to get the pcm to recognize it. does it need to be flashed with a tuner?
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exactly how do you get the pcm to recognize that you wired the performance shift up. i did it today in my 02 gtp but idk how to get the pcm to recognize it. does it need to be flashed with a tuner?
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