Electrical/electronic circuit

ELECTRICAL/ELECTRONIC CIRCUIT

The electrical/electronic circuit for the fuel system basically comprises wiring, an electronic control unit and the following sensors and actuators:

• Rpm sensor
• Coolant temperature sensor
• Air flow meter
• Intake air temperature sensor
• Instrument injector
• Accelerator lever position sensor
• Fast idle solenoid valve
• Pre-heating control unit

Electronic control unit

The electronic control unit (ECU) is located below the glove compartment (right side) and is connected to the wiring by means of a 25 pin connector.

It receives all the information relating to the engine running conditions transmitted by the various sensors in addition to atmoshperic pressure information obtained by means of a sensor inside the actual control unit.

Through this data and with the aid of special programmes, the control unit is capable of carrying out the following operating strategies:

• injection advance management
• fast idle management
• exhaust gas recirculation management
• air conditioning system management
• heater plugs pre/post heating management

Location of electronic unit