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Old 02-17-2003, 09:22 PM   #11
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What if you make mods, like a pulley swap, CAI, exhaust etc. and you DON'T disconnect the battery.
Will the PCM relearn and adjust all the same
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Old 02-17-2003, 09:24 PM   #12
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For major mods like my Jet chip, the PCM took a couple days or 100 miles to get back in step. Disconnecting your battery first is reported to aid this relearning process. It'* not necessary though. "If you build it, it will learn".
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