Components of iaw spi system
- Make
- Fiat
- Model
- Punto (176) Factory Service Manual
- Year
- 1993–1999
- Section
- Fuel system (1108, 1242 SPI) › Components of iaw spi system
10 EngineComponents of iaw spi system
COMPONENTS OF IAW SPI SYSTEM
The Weber SPI injection/ignition system is made up of four interdependent circuits:
A. Fuel supply circuit
B. Air intake circuit
C. Electric/electronic circuit
D. Circuit for checking harmful exhaust emissions
Two devices and their circuits strictly related to the injection system are also present. These are also designed to reduce vehicle harmful emissions in line with USA '83 standards. These are as follows: fuel evaporation control and vapour recovery circuit; crankcase vapour recirculation and recovery circuit.
A. FUEL SUPPLY CIRCUIT
Fuel system diagram
| 1. Reservoir | 7. Fuel pressure regulator, built into injector turret |
| 2. Pump submerged in tank | 8. Return line |
| 3. Mesh pre-filter located on pump intake | 9. Fuel recirculation one-way valve (anti-reflux) |
| 4. Paper main fuel filter | 10. Inertia safety switch |
| 5. Outlet line | |
| 6. Injector (fitted to injector turret) |
Parts & tools for this job For 1993 Fiat Punto
- PARTFuel filterSearch: Fiat Punto 1993 fuel filter
- TOOLFuel pressure test kitSearch: fuel pressure test kit
- TOOLFuel line disconnect toolSearch: fuel line disconnect tool
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