Workshop Manuals Factory service & repair Fiat
Fiat Punto (176) Factory Service Manual (1993-1999)02 · 10 Engine
02 · Engine

Fuel system

Make
Fiat
Model
Punto (176) Factory Service Manual
Year
1993–1999
Section
Contents (1108, 1242 SPI) › Fuel system
10 EngineFuel system

FUEL SYSTEM

Weber - Marelli integrated S.P.I. injection - ignition systems, 06F.SB and 06F.S31
Weber - Marelli S.P.I. injection - ignition system diagram, I.A.W. 06F.SB - 06F.S32
Components of IAW SPI system3
A. Fuel supply circuit3
- Electric fuel pump (Walbro Marval)4
- Fuel filter F1/034
- Fuel recirculation one-way or anti-reflux valve4
- Inertia safety switch5
- Injector turret - Fuel pressure regulator6
- Bottom feed electric fuel injector (IWM 523)7
Air intake circuit8
B. - Engine idle speed control actuator9
Electric/electronic circuit10
C. - Injection - ignition electronic control unit11
- System operation12
- Checking ignition advance14
- System automatic diagnosis - Active dialogue with Fiat/Lancia Tester15
- System relay16
- Throttle valve position sensor - Engine coolant temperature sensor17
- Absolute pressure sensor18
- Intake air temp. sensor-Rpm/synchronism sensor19
- Weber integrated ignition system20
- ECU/actuator sensor electrical connection diagram21
- Location of components of I.A.W. 06F S.P.I. injection-ignition components in engine bay22
- Diagram of input and output between ECU and system sensors and actuators23
D. System for controlling harmful exhaust emissions24
- Fuel evaporation control and vapour recovery circuit27
- Petrol vapour cut-off solenoid (Siemens)32
- Engine block gas recycling system33
Checks, adjustments and repairs to Weber (S.P.I.) injection/ignition system additional to diagnosis with Fiat/Lancia tester34
- Removing-refitting fuel pump34
- Removing - refitting fuel filter35
- Dismantling - refitting components of injector turret36
- Dismantling - refitting butterfly valve opening position sensor (potentiometer) from injector turret37
- Dismantling-refitting additional air/idle speed control actuator (step motor)37
- Replacing inlet air temperature sensor - Replacing engine coolant temperature sensor38
- Replacing absolute pressure sensor - Replacing Lambda probe39
- Checks on rpm and TDC sensor. - Checking ignition coil primary winding resistance - Checking ignition coil secondary winding resistance40
- Approximate check on idling ignition advance using stroboscopic lamp - Adjusting accelerator cable41
- Checking engine speed - Checking levels of polluting emissions42
- Weber Marelli S.P.I. integrated injection - ignition system EEC STAGE 2 (CF 2)44
- I.A.W. injection-ignition system wiring diagram.45

Parts & tools for this job For 1993 Fiat Punto

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