Workshop Manuals Factory service & repair Lancia
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Lancia Ypsilon Factory Service Manual (2003-2011)22 · Fault diagnosis
22 · Diagnostics

Engine starts, and cuts out straight away

Make
Lancia
Model
Ypsilon Factory Service Manual
Year
2003–2011
Section
Starting › Engine starts, and cuts out straight away
Fault diagnosisEngine starts, and cuts out straight away

ENGINE STARTS, AND CUTS OUT STRAIGHT AWAY

1.2 8v, 1.2 16v, 1.4 16v

The engine starts, with difficulty and then immediately cuts out suddenly

Results of the tests
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the Examiner diagnostic equipment to the diagnostic socket and check the engine control node for:

  • for errors in the control unit
  • plausibility of all the parameters
Continue to Step 2An error is detected in the control unitContinue according to the instructions for the diagnostic equipment
unreliable parametersContinue according to the instructions for the diagnostic equipment
2SPARK PLUG CONDITION CHECKAll OKProblems metOperation
Remove the spark plugs and check the condition of the spark plugs and make sure that the gap is correctContinue to Step 3Spark plug faultReplace the spark plugs Op. 5510D10
3SUPPLY PRESSURE CHECKAll OKProblems metOperation

With the ignition ON and the engine switched off, check the fuel supply pressure. Op. 0510C10

Start up the engine and check that the supply pressure does not decrease

Continue to Step 4The supply pressure decreasesReplace the fuel pump assembly Op. 1040A70
4CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persists: control unit faultyReplace control unit Op. 1056B82

1.4 16v

The engine starts, with difficulty and then immediately cuts out suddenly

Results of the tests
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the Examiner diagnostic equipment to the diagnostic socket and check the engine control node for:

  • for errors in the control unit
  • plausibility of all the parameters
Continue to Step 2An error is detected in the control unitContinue according to the instructions for the diagnostic equipment
unreliable parametersContinue according to the instructions for the diagnostic equipment
2SPARK PLUG CONDITION CHECKAll OKProblems metOperation
Remove the spark plugs and check the condition of the spark plugs and make sure that the gap is correctContinue to Step 3Spark plug faultReplace the spark plugs
3SUPPLY PRESSURE CHECKAll OKProblems metOperation

With the ignition ON and the engine switched off, check the fuel supply pressure. Op. 0510C10

Start up the engine and check that the supply pressure does not decrease

Continue to Step 4The supply pressure decreasesReplace the fuel pump assembly Op. 1040A70
4CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persists: control unit faultyReplace control unit Op. 1056B82

1.3 JTD

The engine starts, with difficulty and then immediately cuts out suddenly

Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation

Check, in order:

  • that there is no water, other fluids, dirt or paraffin in the fuel filter
  • that there are no obstructions in the drainage system
  • that there is no intake of air in the low pressure circuit
Continue to Step 1There is water, other fluids or dirt in the fuel filterClean the filter, tank and fuel pipes and replace the filter element
Obstructions in the drainage systemReplace the damaged system component
Intake of air in the low pressure circuitRepair the leak
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the Examiner diagnostic equipment to the diagnostic socket.

Recreate the conditions in which the problem occurs and check that there are no errors in the control unit

Continue to Step 2Simultaneous presence of errors P1191 and P1197Continue to Step 5
Simultaneous presence of errors P1194 and P1197Continue to Step 5
Presence of error P1191Continue to Step 2
Presence of one of the following errors: P1193, P1195, P1196Continue to Step 2
Presence of error P1194Continue to Step 2
Presence of other errorsContinue according to the instructions for the diagnostic equipment
2DIESEL PRESSURE SENSOR CHECKAll OKProblems metOperation
Check the correct operation of the sensor as described in the test See Test 1060GE Check on operation of diesel high pressure sensorContinue to Step 3Diesel pressure sensor defectiveReplace the pressure sensor
Faulty wiringRenew the wiring
3SUPPLY PRESSURE CHECKAll OKProblems metOperation
With the Examiner diagnostic equipment connected, check, in active diagnosis, that the pressure regulator is working properlyContinue to Step 4Pressure regulator defectiveReplace the regulator
4HIGH PRESSURE CHECKAll OKProblems metOperation
With the diagnostic equipment connected to the diagnostic socket, check as described in the test See Test 1060D Check high pressure fuel circuitthat the diesel pressure parameter is correctContinue to Step 5Pressure not correctContinue to Step 3
5CHECK ON RETURN LOW PRESSUREAll OKProblems metOperation
Check as described in the test See Test 1060A Low return fuel pressure circuit checkthat the pressure in the return pipe to the tank is under 1 barContinue to Step 6Pressure above maximum limit (return pipe to tank blocked)Repair the pipe; if necessary replace it.
6LOW SUPPLY PRESSURE CHECKAll OKProblems metOperation
Check as described in the Test See Test 1060B Low fuel pressure supply circuit checkthat the diesel pressure between filter and radial jet pump is between 2 and 3 bar.Continue to Step 7Pressure below minimum limit or above maximum limitContinue to Step 5
7LOW SUPPLY PRESSURE CHECKAll OKProblems metOperation
Choke the return pipe from the pressure regulating valve and repeat the test See Test 1060B Low fuel pressure supply circuit checkwith the pipe choked, checking that the pressure at the filter outlet is below 2 barContinue to Step 8Pressure rises to 5 bar: pressure regulator in filter casing stuckReplace the filter assembly
8LOW SUPPLY PRESSURE CHECKAll OKProblems metOperation
Check that the difference in pressure upstream and downstream of the filter is less than 1 barContinue to Step 9Difference in pressure greater than 1 barReplace the fuel filter cartridge Op. 1044B16
9LOW SUPPLY PRESSUR CHECKAll OKProblems metOperation
Check that the pressure of the supply pump at the filter inlet is over 2.2 barContinue to Step 10Pressure below 2.2 barContinue to Step 8
10LOW SUPPLY PRESSURE CHECKAll OKProblems metOperation
Measure the difference in pressure between electric pump outlet and filter inlet and check that it is less than 0.3 barContinue to Step 11Difference in pressure over 0.3 barReplace the pipe
11LOW SUPPLY PRESSURE CHECKAll OKProblems metOperation
Check as described in the test See Test 1040AA Check supply voltage and absorption currentthat the pump's supply voltage is 13V and that the absorbed current is less than or equal to 4.6 ampsContinue to Step 12Voltage below 12 VCheck wiring, intervention on connection cables See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
Current greater than 4.6 amps: pump faultyReplace the fuel pump assembly Op. 1040A70
12CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Replace the pressure pump and check that the fault is no longer presentEnd of diagnosisFault persists: control unit faultyReplace engine management control unit Op. 1060G80

Parts & tools for this job Staging For 2003 Lancia Ypsilon

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