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Home >> GMC >> 1998 >> Forward Control 7.4 B >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation - 7.4L >> Computerized Engine Controls >> Powertrain Control Module (Pcm) & Vehicle Control Module VCM) >> Arithmetic Logic Unit (ALU)
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Arithmetic Logic Unit (ALU)

This internal component of the PCM/VCM converts electrical signals received from various engine sensors into digital signals for use by the CPU.

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