3234536 - E5030 PETROL ENGINE ELECTRONIC MANAGEMENT - Description (Q-System)

Description

An electronic management system supervises and governs all engine parameters. It optimises performance and fuel consumption by responding in real time to different service conditions.The system is managed by a single control unit that controls the ignition (static and lost spark) and the fuel injection (phased).

The system uses signals received from numerous sensors to control actuators. It is connected to the following systems:

• fuel supply;
• air supply:
• accelerator pedal;
• engine cooling system;
• exhaust with catalytic converter;
• fuel vapour recirculation.

On this version, the engine is fitted with a throttle body controlled electronically by the control unit. Special software inside the control unit computes throttle opening. This system does away with a connection between accelerator and throttle body. For more details,  Characteristic of working principle 1056  PETROL INJECTION SYSTEM . The system is also controlled by means of special relays located in the engine compartment near the battery.The supply lines to the control unit and the various system components (sensors and actuators) are protected by a specific maxifuse and other jumper fuses located next to the junction unit.