Inspection of the high pressure fuel circuit
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Diesel injection system › Inspection of the high pressure fuel circuit
INSPECTION OF THE HIGH PRESSURE FUEL CIRCUIT
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.
Press the START/STOP button and check that the fuel pressure is greater than 300 bar with engine rpm higher than 200 rpm.
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