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Home >> Lexus >> 2003 >> LS 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 111 (Engine Controls - Theory & Operation) >> Computerized Engine Controls >> Engine Control System
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Engine Control System

WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2003 Toyota Tundra, 2003 Toyota Tacoma, 2003 Toyota Sienna, 2003 Toyota Sequoia, and 2003 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

Engine control system is a computerized emission, ignition and fuel injection control system. Engine control system lowers exhaust emissions while maintaining good fuel economy and driveability. Engine control system consists of various sensors, switches and control units. The Engine Control Module (ECM) controls engine control system based on input signals received from various input devices. ECM contains preprogrammed data to maintain optimum engine performance under all operating conditions.