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Alfa Romeo 159 Factory Service Manual (2005-2011)08 · Engine
08 · Engine

Diesel fuel temperature check

Make
Alfa Romeo
Model
159 Factory Service Manual
Year
2005–2011
Section
Diesel injection system › Diesel fuel temperature check
EngineDiesel fuel temperature check

DIESEL FUEL TEMPERATURE CHECK

Check 1060EA

1.9 JTD 8V, 1.9 JTD 16V, 2.4 JTD 20V

CHECK TO BE PERFORMEDRESOLUTION IF THE CHECK IS NOT OK
1At service temperature, with engine idling, the reading must be between 10 and 120°C. The test may be said to be concludedMove on to Step 2
2

Press the START/STOP button and turn off the engine.

Disconnect the wiring harness connector from the temperature sensor and fuel heater coil

See K100 MIL WARNING LIGHT NOT WORKING (REMAINS OFF BEFORE STARTING)

Press the START/STOP button.

Measure the voltage between the sensor Pin 4 and Earth. Ensure is between 4.8 and 5.2 V. Go on to Step 4

See K100 MIL WARNING LIGHT NOT WORKING (REMAINS OFF BEFORE STARTING)

Move on to Step 3
3

If faults are present, repair or if necessary replace the electrical wiring between the engine control unit and the heater coil

See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT

The test can be considered over

Replace the engine management control unit

Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - .R

4

Measure the voltage between Pins 3 and 4 of the sensor. Check it is between 4.8 and 5.2 V

See K100 MIL WARNING LIGHT NOT WORKING (REMAINS OFF BEFORE STARTING)

Move on to Step 3
5

Replace the diesel heater coil and ensure the fault has disappeared

Op. 1044D10 FUEL HEATER - R + R

Repair the original heater coil and replace the engine management control unit.

Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - .R

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