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According to GM, only the L99 SS had the issue with not relearning. What I haven't seen is how long the relearn process is, 5, 50, 100, miles or more? So if you want it to relearn instantly you could still pull the fuses, it won't hurt anything. This is the fuses to pull according to the GM info: Normally this reset can also be accomplished by pulling the 2 main ECM fuses (F13R and F20U) shown in the ECM Power, Ground, MIL, and Serial Data Schematic (SI Document # 2209065).
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