Fuel System - Fiat 1998 Marea Service Manual

Marea-Marea
1998 range
INTEGRATED INJECTION-IGNITION
SYSTEM - M. MARELLI-
I.A.W.-49F
- Introduction
S Y S T E M O P E R A T I N G S T R A T E G I E S
Injection-ignition system operating
diagram
- Injection management
- Ignition management
- Fiat CODE ignition immobiliser man-
agement
- Radiator fan management
- Engine idle control
- Fuel vapour recirculation management
- Test management
- Heating/ventilation system management 14
Diagram showing
put/output between ECU and injec-
tion-ignition system
Air intake circuit diagram
Fuel supply circuit diagram
Fuel evaporation control circuit
diagram
Blow-by gas recirculation diagram
Injection-ignition system wiring
diagram
Engine exhaust assembly diagram
Location of injection-ignition system
components
INJECTION-IGNITION SYSTEM
F U S E S AND R E L A Y S
T E S T E R S O C K E T
E A R T H POINTS
COMPONENTS OF INJECTION-IGNITION
S Y S T E M
- Injection-ignition system wiring
- Injection-ignition ECU
- Rpm and TDC sensor
- Detonation sensor
Copyright Fiat Auto
Weekend®^
page
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- Throttle case
- Throttle position sensor
- Coolant temperature sensor
- Engine idle speed actuator
- Intake air pressure and temperature
sensor
- Electric fuel pump
- Fuel manifold
- Carbon filter and fuel vapour cut-off
2
valve
- Multifunction valve
3
- Vehicle speed sensor
9
- Safety and ventilation valve
- Injectors
- Inertia safety switch
- Ignition coils
- Lambda probe
CHECKS-ADJUSTMENTS
AND REPAIRS ON
T H E INJECTION/IGNITION S Y S T E M 51
- Adjusting throttle cable
- Removing-refitting fuel manifold and
injectors
- Removing-refitting fuel tank
- Removing-refitting accelerator
cable
- Checking engine idle speed
- Checking levels of polluting emis-
sions
- Checks on fuel feed circuit
F A U L T D I A G N O S I S
- Error recognition and storage
- Error frequency counter
- Error deletion
- System warning light management
- Communication between control unit
and tester
- Displayed parameters
- List of errors
- Active diagnosis
Engine

Fuel system

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