LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2000 >> Astro Van Passenger, AWD >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls (Gasoline Engines) >> Powertrain Control Module & Vehicle Control Module >> Central Processing Unit
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Central Processing Unit

The Central Processing Unit (CPU) uses digital signals to perform all mathematical computations and logic functions necessary to deliver proper air/fuel mixture. CPU also calculates spark timing and idle speed. The CPU controls operation of emission control, "closed loop" fuel control and diagnostic system.