Fiat STILO 1.2 16v Fino a 04/2005 – PETROL ENGINES ELECTRONIC MANAGEMENT – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Wiring diagram - PETROL ENGINES ELECTRONIC MANAGEMENT - Fiat STILO 1.2 16v Fino a 04/2005

PETROL ENGINE ELECTRONIC MANAGEMENT - WIRING DIAGRAM Fiat STILO 1.2 16v Fino a 04/2005

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Components - PETROL ENGINES ELECTRONIC MANAGEMENT - Fiat STILO 1.2 16v Fino a 04/2005

Component code	Name	Assembly reference
A30	Ignition coil
B2	Junction unit under dashboard
C10	Front left earth	-
C15	Facia earth, driver''s side	-
C20	Passenger side dashboard earth	-
C40	Earth on engine	-
C60	Injection ECU earth	-
D1	Front / dashboard coupling	-
D1	Front/dashboard coupling	-
D4	Front/engine connection	-
D4	Front/engine coupling	-
D24	Engine coupling/ i.e.	-
D81	Injector junction	-
D97	Short circuiting coupling	-
E50	Instrument panel
I30	Brake pedal switch	-
I31	Clutch pedal switch	-
I50	Inertia switch
K15	Lambda sensor on pre-catalyzer
K17	Lambda sensor downstream of post-catalyzer
K36	Engine temperature sender unit
K43	Integrated air temperature sensor
K46	Rpm sensor
K47	Timing sensor.
L10	Fuel vapour recovery solenoid
M1	Body computer
M10	Engine management control unit	-
M10	Engine management control unit
N40	Fuel pump and sender unit
N70	Injector
N75	Integrated throttle body actuator

Location of components - PETROL ENGINES ELECTRONIC MANAGEMENT - Fiat STILO 1.2 16v Fino a 04/2005

PETROL ENGINE ELECTRONIC MANAGEMENT - LOCATION OF COMPONENTS Fiat STILO 1.2 16v Fino a 04/2005

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Components - PETROL ENGINES ELECTRONIC MANAGEMENT - Fiat STILO 1.2 16v Fino a 04/2005

Component code	Name	Assembly reference
A30	Ignition coil
B2	Junction unit under dashboard
C10	Front left earth	-
C15	Facia earth, driver''s side	-
C20	Passenger side dashboard earth	-
C40	Earth on engine	-
C60	Injection ECU earth	-
D1	Front / dashboard coupling	-
D1	Front/dashboard coupling	-
D4	Front/engine connection	-
D4	Front/engine coupling	-
D24	Engine coupling/ i.e.	-
D81	Injector junction	-
D97	Short circuiting coupling	-
E50	Instrument panel
I30	Brake pedal switch	-
I31	Clutch pedal switch	-
I50	Inertia switch
K15	Lambda sensor on pre-catalyzer
K17	Lambda sensor downstream of post-catalyzer
K36	Engine temperature sender unit
K43	Integrated air temperature sensor
K46	Rpm sensor
K47	Timing sensor.
L10	Fuel vapour recovery solenoid
M1	Body computer
M10	Engine management control unit	-
M10	Engine management control unit
N40	Fuel pump and sender unit
N70	Injector
N75	Integrated throttle body actuator

Description - PETROL ENGINES ELECTRONIC MANAGEMENT - Fiat STILO 1.2 16v Fino a 04/2005

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 which controls both the ignition and the injection.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;control of combustion - Lambda sensors;control of exhaust with catalytic silencer;fuel vapour recirculation.The throttle body is also controlled electronically by the control unit; special software in the engine management control unit computes throttle opening; this dispenses with the need for a mechanical connection between the accelerator pedal and the throttle body.Thanks to the electronic management described above, this engine conforms to the latest anti-pollution and continuous control regulations in accordance with the EOBD (European On Board Diagnosis) system; this system allows continuous diagnosis of the car components relating to emissions, and indicates to the user, by switching on the relevant warning light on the instrument panel, any deterioration in these components.For greater detail, see.The system is also controlled by means of special relays located in the engine compartment unit; The supply lines to the control unit and the various system components (sensors and actuators) are protected by special fuses, in the engine compartment unit.

Functional description - PETROL ENGINES ELECTRONIC MANAGEMENT - Fiat STILO 1.2 16v Fino a 04/2005

The engine control unit M10 monitors and controls the entire electronic ignition and injection system.The control unit M10 is supplied directly by the battery at pin 18 of connector A, via the line protected by fuse F18 of engine bay control unit B1 .The supply controlled by the ignition (15/54) reaches pin 51 of connector A of M10 from the line protected by fuse F16 of the engine compartment unit B1 .The main injection relay T9 of B1 controls the entire system: this is excited by a control signal (earth) received from pin 19 of connector A of control unit M10 and then sends power:to the injectors N70 and the coils A30 , via the line protected by fuse F22 of B1 .to the fuel vapour recovery solenoid L10 and the Lambda sensors K15 and K17 via a line protected by fuse F11 of B1to pins 17, 33 and 49 of control unit M10 and sensor K47 , , via the line protected by fuse F17 of B1 ;The fuel pump relay T10 of B1 is supplied by the line of the fuse F21 of B1 .It is energized by a control signal (earth) from pin 62 of connector A of control unit M10 and supplies power to fuel pump N40 , which is earthed through the inertia switch I50 , which cuts off the circuit in the case of a crash and so prevents the dangerous spilling of fuel.