High pressure fuel circuit check
- Make
- Fiat
- Model
- Grande Punto Factory Service Manual
- Year
- 2005–2012
- Section
- Diesel injection system › High pressure fuel circuit check
HIGH PRESSURE FUEL CIRCUIT CHECK
Disconnect the electrical connections from all the injectors.
Disconnect the fuel recirculation pipes from all the injectors.
Constrict the pipe so that no fuel comes out during the test.
Connect the tester.
Display the "measured diesel pressure" and "engine rpm" parameters on the "Control Unit Test" parameters screen.
Turn the ignition key to the AVV position for 5 seconds and check that the fuel pressure is above 300 bar with the engine speed above 200 rpm.
Disconnect the electrical connections from all the injectors.
1. Disconnect the fuel recirculation pipes from all the injectors.
Constrict the pipe so that no fuel comes out during the test.
Connect the tester.
Display the "measured diesel pressure" and "engine rpm" parameters on the "Control Unit Test" parameters screen.
Turn the ignition key to the AVV position for 5 seconds and check that the fuel pressure is above 300 bar with the engine speed above 200 rpm.
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- TOOLDigital multimeterSearch: automotive digital multimeter
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- TOOLWire crimper and connector kitSearch: wire crimper connector kit
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