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Home >> GMC >> 1994 >> Forward Control 7.4 N >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Powertrain Control Module (Pcm) >> Control Unit >> Installation
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Control Unit: Installation

Install PROM and CALPAC (if equipped) or MEM-CAL in NEW PCM. See CALPAC , MEM-CAL , or PROGRAMMABLE READ-ONLY MEMORY (PROM) . Install PCM into vehicle. Connect electrical connectors to PCM. Install access panels. Reconnect negative battery cable.