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Evo8 alternator control with standalone ECU?

Practical Standalone Tuning

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The stock ECU in an Evo8 or a 2G DSM controls the alternator via an ECU pin to regulate engine load at idle, WOT, etc. When folks install a standalone on these cars, or other cars that have similar alternator ECU control, do they retain that functionality? I'm working on setting up an Emtron for an Evo8.

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