Fuel system - check delivery pressure
- Make
- Fiat
- Model
- Grande Punto Factory Service Manual
- Year
- 2005–2012
- Section
- Various checks › Fuel system - check delivery pressure
FUEL SYSTEM - CHECK DELIVERY PRESSURE
- Disconnect the electrical connections from the injectors.
| Description | Connector | |
|---|---|---|
| Injector | See N070 INJECTOR |
1. Prepare the test equipment as described in points 2, 3 and 4 below.
| Tool | Description | Function | Validity |
|---|---|---|---|
| 1860955000 | Pressure gauge | Fuel pressure check | 1.2 8v 1.4 8v |
The test equipment has adapators for connection to different types of injection systems; make sure that the appropriate adapators are fitted before making the connections.
2. Open the tap.
3. Close the tap.
4. Close the tap.
5. Position the test equipment and connect it to the fuel manifold bleed valve using the specific connector.
| Tool | Description | Function | Validity |
|---|---|---|---|
| 1870684000 | Rapid attachment connector | Fuel pressure check | 1.2 8v 1.4 8v 1.4 16v |
- Reconnect the electrical connections to the injectors.
- Start up the engine and check that the pressure reading on the gauge during idling corresponds to the recommended figures.
| Measurement | Value | Validity |
|---|---|---|
| Fuel supply pressure (idle speed) | 3.5 bar | 1.2 8v 1.4 8v |
- Switch off the engine.
- Operate the fuel pump through the "Active Diagnosis" function of the diagnostic equipment and check that the pressure does not exceed 4 bar.
- Disconnect the test equipment and the specific connector from the fuel manifold bleed valve.
Parts & tools for this job For 2005 Fiat Grande Punto
- PARTFuel filterSearch: Fiat Grande Punto 2005 fuel filter
- TOOLFuel pressure test kitSearch: fuel pressure test kit
- TOOLFuel line disconnect toolSearch: fuel line disconnect tool
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