02 · Engine

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10 Enginepage · page 1 of 2

HITACHI INTEGRATED INJECTION/IGNITION SYSTEM	1
- Diagram showing operation of HITACHI injection/ignition system	2
- Diagram showing information arriving at/leaving control unit and sensor/actuators HITACHI injection/ignition system	3
- Location of HITACHI injection/ignition system components in engine compartment	4
SYSTEM MANAGEMENT STRATEGIES	5
- Signal management	5
- Injection management	6
- FIAT CODE anti-theft system management	10
- Ignition management	11
- Engine idle control management	13
- Charcoal filter management	13
- Radiator fan management	14
- Climate control system management	16
DIAGNOSIS	17
RECOVERY STRATEGIES	19
ELECTRICAL/ELECTRONIC CIRCUIT	20
- HITACHI system control unit pin-out	21
- HITACHI system wiring diagram	22
- System relays	23
- Engine rpm sensor	24
- Engine timing sensor	25
- Air flow meter	26
- Lambda sensor	27
- Butterfly position sensor	28
- Engine coolant temperature sensor	28
- Vehicle speed sensor	29
- Detonation sensor	29
- Ignition system	30
- Ignition power module	31
- Ignition coil	31

Parts & tools for this job For 1995 Fiat Bravo

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DIAGRAM SHOWING INLET CIRCUIT	32
INLET CIRCUIT	33
- Butterfly casing	33
- Engine idle speed adjustment solenoid valve	34
DIAGRAM SHOWING FUEL SUPPLY CIRCUIT	35
FUEL SUPPLY CIRCUIT	35
- Electric fuel pump	36
- Fuel filter	36
- Inertia safety switch	37
- Anti-flow single-acting valve	37
- Fuel manifold	38
- Fuel pressure regulator	38
- Injectors	39
EMISSION CONTROL DEVICES	40
- Catalytic silencer	40
- Fuel anti-evaporation system	41
- Crankcase gases recirculation system (blow-by)	45
TIGHTENING TORQUES	46
CHECKS, ADJUSTMENTS AND REPAIR OPERATIONS ON HITACHI MPI SYSTEM	47
- Fuel supply circuit	47
- Fuel circuit pressure checks	50
- Inlet circuit	52
- Electrical circuit	54
CHECKING EMISSION CONCENTRATION	57
CHECKING ENGINE IDLE SPEED	58
CHECKING IGNITION ADVANCE	58