I installed a Megasquirt in my 91 vette. It controls fuel and spark but I was hoping my original ECM would continue to control the fans. The original ECM still has coolant temp input. Does anyone know what the ECM is "missing" that keeps it from controlling the fans? I don't believe the AC is turning on either, but I'm not yet concerned with that. I just tried turning on the AC to see if the fans would come on.. Even if it was limp home mode I would think the fans would still be controlled. TIA
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