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Home >> Buick >> 1991 >> Roadmaster 4L60/MD8 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Ignition System >> Electronic Control Module (ECM) >> Installation
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Electronic Control Module (ECM): Installation

Install PROM and CALPAC (if equipped) or MEM-CAL in new ECM. Install ECM into vehicle. Connect electrical connectors to ECM. Install access panels. Reconnect negative battery cable to battery.