198001699 - D014 ENGINE CUTS OUT WHEN IDLING (THEN RESTARS)

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 carrying out the    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: EDC16C39 Diesel electronic injection control unit.Check the value of the following parameters:· Battery voltage    See Test 5530BB BATTERY VOLTAGE CHECK· Engine coolant temperature    See Test 5030AA COOLANT TEMPERATURE SENSOR CHECK· Diesel temperature· Target Diesel pressure· Measured Diesel pressure    See Test 1060GH DIESEL PRESSURE CHECK· Engine rpmMove on to Step 2
2PARTICULATE FILTRATION SYSTEM CHECKSAll OKProblems encounteredOperation
Check that the DPF system is working properly, carrying out the    See Test 1080BE PARTICLE FILTER SATURATION CHECKMove on to Step 3
3INJECTOR HIGH PRESSURE CHECKAll OKProblems encounteredOperation
Check, as instructed 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 4Significant leak from one injectorReplace the injector    Op. 1060F10 FUEL INJECTORS - R.R.
4HIGH PRESSURE CHECKAll OKProblems encounteredOperation
Check as described in the    See Test 1060OD Injector high pressure fuel circuit checkthat the diesel pressure parameter is correct.Move on to Step 11Pressure not correctMove on to Step 5
5LOW RETURN PRESSURE CHECKAll OKProblems encounteredOperation
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 6Pressure above the maximum limit: return pipe to the tank obstructedRepair the pipe; if necessary, replace it
6LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
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 7Pressure below the minimum limit or above the maximum limitMove on to Step 10
7LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Check by carrying out 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 8Difference in pressure more than 1 barReplace the fuel filter    Op. 1044B10 FUEL FILTER ASSEMBLY - R + R OR REPLACE
8LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Check that the supply pump pressure at the filter inlet is between 3.5 and 5 barMove on to Step 9Pressure below 3.5 barMove on to Step 10
9LOW 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 10Difference in pressure more than 0.3 barReplace the pipe
10LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
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 AMove on to Step 11Voltage 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
11CORRECT 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