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Home >> GMC >> 1987 >> Forward Control 6.2 J, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - TBI >> Removal & Installation >> Electronic Control Module (ECM)

Electronic Control Module (ECM)

Locate electronic control module. Disconnect battery negative cable. Disconnect electrical connectors from ECM. Remove ECM mounting hardware and ECM. To install, reverse removal procedure.