D020 ENGINE CUTS OUT WHILST RUNNING (THEN DOES NOT RESTART) - Fiat - NUOVA BRAVO - eLearn

198001700 - D020 ENGINE CUTS OUT WHILST RUNNING (THEN DOES NOT RESTART)

The customer complains that: The engine cuts out whilst idling; it is impossible to restart it

0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
		Test results
	Check that the engine oil level is correct Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY Check that the air intake/vacuum circuit is working properly by carrying out the See Test 1048OA AIR INTAKE/VACUUM CIRCUIT CHECKCheck the condition of the fuel supply circuit and make sure that it is working properly, carrying out the See Test 1040OA Fuel supply circuit checkAlso check:1. wiring on engine correctly fastened to earth;2. battery correctly fastened to earth;3. positive battery terminal and all leads connected to it correctly fastened	Move on to Step 1	Oil level incorrect	Restore the correct engine oil level Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY
			Supply fastenings slack or oxidized	Restore correct fastenings See E1010 POWER SUPPLY
			Earth fastenings slack or oxidized	Restore correct fastenings See E1010 POWER SUPPLY
1	MODE PARAMETERS CHECK	All OK	Problems encountered	Operation
	Select the following control unit at the diagnostic equipment: EDC16C39 Diesel electronic injection control unit.Check the value of the following parameters:· Battery voltage See Test 5530BB BATTERY VOLTAGE CHECK· Engine rpm· Target Diesel pressure· Measured Diesel pressure See Test 1060GH DIESEL PRESSURE CHECK	Move on to Step 2
2	PARTICULATE FILTRATION SYSTEM CHECKS	All OK	Problems encountered	Operation
	Check that the DPF system is working properly, carrying out the See Test 1080BE PARTICLE FILTER SATURATION CHECK	Move on to Step 3
3	INJECTOR HIGH PRESSURE CHECK	All OK	Problems encountered	Operation
	Check as described in the See Test 1060OC INJECTOR SEAL TESTthat the diesel leaks from the injector recirculation connections are small (seepage) and roughly equal to one another.	Move on to Step 9	Significant leak from one injector	Replace the injector Op. 1060F10 FUEL INJECTORS - R.R.
4	HIGH PRESSURE CHECK	All OK	Problems encountered	Operation
	Check as described in the See Test 1060OD Injector high pressure fuel circuit checkthat the diesel pressure parameter is correct.	Move on to Step 11	Pressure not correct	Move on to Step 5
5	LOW RETURN PRESSURE CHECK	All OK	Problems encountered	Operation
	Check as described in the See Test 1060OA Low pressure fuel return circuit checkthat the pressure in the return pipe to the tank is less than 1 bar	Move on to Step 6	Pressure above the maximum limit: return pipe to the tank obstructed	Repair the pipe; if necessary, replace it
6	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check as described in the See Test 1060OB Low pressure fuel supply circuit checkthat the diesel pressure between the filter and the pressure pump is between 3.5 and 5 bar	Move on to Step 10	Pressure below the minimum limit or above the maximum limit	Move on to Step 10
7	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check using the See T CHECK ON CHANGE IN PRESSURE AT THE FUEL FILTERthat the difference in pressure upstream and downstream of the filter is less than 1 bar	Move on to Step 8	Difference in pressure more than 1 bar	Replace the fuel filter Op. 1044B10 FUEL FILTER ASSEMBLY - R + R OR REPLACE
8	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check that the supply pump pressure at the filter inlet is between 3.5 and 5 bar	Move on to Step 9	Pressure below 3.5 bar	Move on to Step 10
9	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Measure the difference in pressure between the electric pump outlet and the filter inlet and check that it is less than 0.3 bar	Move on to Step 11	Pressure above 0.3 bar	Replace the pipe
10	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check as described in the See Test 1040AA CHECK ON SUPPLY VOLTAGE AND CURRENT UPTAKEthat the pump supply voltage is equal to 12V and that the current uptake is between 2 and 10 A	Move on to Step 11	Voltage lower than 12 V	Renew electrical wiring See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
			Current greater than 10 A: pump defective	Replace the fuel pump Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R
			Current less than 2 A: pump obstructed	Replace the fuel pump Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R and clean the fuel tank
12	CORRECT OPERATION CHECK	All OK	Problems encountered	Operation
	Replace the engine management control unit and check that the fault is no longer present Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R	End of diagnosis	Fault persists	Contact technical service for further information on the problem