199002964 - D020 ENGINE CUTS OUT WHILST RUNNING (THEN NOT RESTARTING)

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

		Test results
1	MODE PARAMETERS CHECK	All OK	Problems encountered	Operation
	Select the following control unit at the diagnostic equipment: Marelli Diesel Injection 6F3 EOBD CAN (EP engine 1.3 JTD).Check the value of the following parameters:· Battery voltage    See Test 5530BB BATTERY VOLTAGE CHECK	Move on to Step 2
2	CHECK FUEL SYSTEM	All OK	Problems encountered	Operation
	Check that the air intake/vacuum circuit is working properly    See Test 1048OA AIR INTAKE/VACUUM CIRCUIT CHECKCheck the condition of the fuel supply circuit and make sure that it is working properly    See Test 1040OA FUEL SUPPLY CIRCUIT CHECKAlso check:- wiring on engine correctly fastened to earth;- battery correctly fastened to earth;- positive battery terminal and all leads connected to it correctly fastened	Move on to Step 3	1. Supply fastenings slack or oxidized2. Earth fastenings slack or oxidized	1. Restore correct fastenings    See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT 2. Restore correct fastenings    See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
3	MODE PARAMETERS CHECK	All OK	Problems encountered	Operation
	Select the following control unit at the diagnostic equipment: Marelli Diesel Injection 6F3 EOBD CAN (EP engine 1.3 JTD).Check the value of the following parameters:- Target Diesel pressure    See Test 1060GH DIESEL PRESSURE CHECK- Measured Diesel pressure- Pressure regulator opening (MPROP)    See Test 1060GR CHECK OPERATION OF FUEL PRESSURE SENSOR ON RAIL- Engine rpm    See Test 1060GA RPM SENSOR EFFICIENCY CHECK	Move on to Step 4
4	CYLINDER COMPRESSION CHECK	All OK	Problems encountered	Operation
	Carry out the cylinder compression check    Op. 0510A10 CYLINDER COMPRESSION - CHECK FOR LOOSE SPARK PLUGS OR INJECTORS	End of diagnosis	Cylinder compression insufficient	Move on to Step 5
5	CHECK ON CAUSE OF INSUFFICIENT COMPRESSION	All OK	Problems encountered	Operation
	Carry out to check the valve seal    Op. 1016C10 SINGLE CYLINDER HEAD - R.R. AND REPLACE GASKET Check condition of cylinders/piston rings	End of diagnosis	1. Valve seal insufficient2. Cylinders/piston rings worn	1. Overhaul the head    Op. 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL 2. Restore the seal