199002965 - D021 ENGINE CUTS OUT WHILST RUNNING AND THEN RESTARTS

The customer complains that: The engine cuts out whilst it is running; it can be restarted
Test results
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
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    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 fastenedMove on to Step 1Oil level incorrectRestore the correct engine oil level    Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY
Supply fastenings slack or oxidizedRestore correct fastenings    See E1010 POWER SUPPLY
Earth fastenings slack or oxidizedRestore correct fastenings    See E1010 POWER SUPPLY
1MODE PARAMETERS CHECKAll OKProblems encounteredOperation
Select the following control unit at the diagnostic equipment: Diesel electronic injection control unit EDC16C39 CF4/EOBD CAN (EP engine 1.9)Check the value of the following parameters:· Battery voltage    See Test 5530BB BATTERY VOLTAGE CHECK· Engine rpm    See Test 1060GI CHECK ENGINE SPEEDMove on to Step 2
2ELECTRICAL EQUIPMENT CHECKAll OKProblems encounteredOperation
Check that fuse F59 has not blown (second from the left on the second row from the bottom)
Move on to Step 3Fuse F59 has blownRestore the connections or, if necessary, replace the junction unit in the engine compartment    Op. 5505A13 ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R.
3DIESEL PREHEATING RELAY CHECKAll OKProblems encounteredOperation
Check the diesel preheating relay circuitSee Test 5505AC Move on to Step 4
4INJECTOR HIGH PRESSURE CHECKAll OKProblems encounteredOperation
Checkthat the diesel leaks from the injector recirculation connections are small (seepage) and roughly equal to one another.    See Test 1060OC INJECTOR SEAL TESTMove on to Step 5Significant leak from one injectorReplace the injector    Op. 1060F10 FUEL INJECTORS - R.R.
5HIGH PRESSURE CHECKAll OKProblems encounteredOperation
Checkthat the diesel pressure parameter is correct.    See Test 1060OD HIGH PRESSURE FUEL CIRCUIT CHECKMove on to Step 13Pressure not correctMove on to Step 6
6LOW RETURN PRESSURE CHECKAll OKProblems encounteredOperation
Checkthat the pressure in the return pipe to the tank is less than 1 bar.    See Test 1060OA LOW FUEL RETURN PRESSURE CIRCUIT CHECKMove on to Step 7Pressure above the maximum limit: return pipe to the tank obstructedRepair the pipe; if necessary, replace it
7LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Checkthat the diesel pressure between the filter and the pressure pump is between 2 and 3 bar    See Test 1060OB LOW FUEL DELIVERY PRESSURE CIRCUIT CHECKMove on to Step 12Pressure below the minimum limit or above the maximum limitMove on to Step 8
8LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Check that the difference in pressure upstream and downstream of the filter is less than 1 barMove on to Step 9Difference in pressure more than 1 barReplace the fuel filter cartridge    Op. 1044B10 FUEL FILTER ASSEMBLY - R + R OR REPLACE
9LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Check that the supply pump pressure at the filter inlet is more than 2.2 barMove on to Step 12Pressure below 2.2 barMove on to Step 10
10LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Measure the difference in pressure between the electric pump outlet and the filter inlet and check that it is less than 0.3 barMove on to Step 11Difference in pressure more than 0.3 barReplace the pipe
11LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Check    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 AMove on to Step 12Voltage lower than 12 VRenew electrical wiring    See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
Current greater than 10 A: pump defectiveReplace the fuel pump    Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R
Current less than 2 A: pump obstructedReplace the fuel pump    Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R and clean the fuel tank
12CORRECT OPERATION CHECKAll OKProblems encounteredOperation
Replace the DRV high pressure regulating valveOp. 1060E50 and check that the fault is no longer present.End of diagnosisFault persistsMove on to Step 13
13CORRECT OPERATION CHECKAll OKProblems encounteredOperation
Replace the engine management control unit    Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R and check that the fault is no longer presentEnd of diagnosisFault persistsContact technical service for further information on the problem