Fiat Bravo Service Manual page 149

Bravo - Brava tiSbiev Engine
Contents
10.
page page
INTEGRATED INJECTION-IGNITION
SYSTEM M MARELLI-WEBER
I.A.W.-1AFT3 1
- Introduction 1
SYSTEM OPERATING STRATEGIES 1
- Signal management 2
- Injection management 3
- Fiat CODE anti-theft function manage­
ment .■"■"■ 8
- Ignition management 9
- Engine idle control 12
- Fuel vapour recirculation management 12
-Test management 12
- Heating/ventilation system management 13
Diagram showing Input/output be­
tween injection-ignition system sen­
sors/actuators 15
Air intake circuit management 15
Fuel supply circuit diagram 16
Fuel evaporation control circuit dia­
gram 17
Blow-by gas recirculation diagram) 18
Engine exhaust assembly diagram 19
Injection-ignition system wiring dia­
gram 20
Location of injection-ignition system
components in engine bay 22
INJECTION SYSTEM FUSES AND
RELAYS 23
EARTH POINTS 23
COMPONENTS OF INJECTION-IGNITION
SYSTEM 24
- Injection-ignition system wiring 24
- Injection-ignition ECU 24
- Rpm and TDC sensor 28
- Timing sensor 30
- Throttle case - 31
- Throttle position sensor 32
- Intake air temperature sensor 34
Engine idle speed actuator
Absolute pressure sensor
Coolant temperature sensor
Electric fuel pump
Fuel filter
Fuel manifold
Fuel pressure regulator
Carbon filter and fuel vapour
cut-off valve
Multifunction valve
Vehicle speed sensor
Safety and ventilation valve
Injectors
Inertia safety switch
Ignition coils
Dual relay
Lambda probe
35
37
38
39
41
42
43
43
45
46
46
47
48
49
51
53
CHECKS, ADJUSTMENTS AND REPAIRS
TO IAW INJECTION/IGNITION
SYSTEM. 56
- Adjusting throttle cable 56
- Removing^refitting fuel manifold with
injectors and pressure regulator 56
- Checking fuel supply circuit 58
- Checking engine idle speed 60
-Checking levels of polluting
emissions 60
lAGNOSIS
System self-diagnosis
Diagnosis using a Fiat/Lancia Tester
Displayed parameters
List of errors
Active diagnosis
Recovery
Permanent memory
61
61
61
62
62
63
63
63
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