3233008 - B20 ENGINE STARTS, AND CUTS OUT STRAIGHT AWAY

The engine starts, with difficulty and then immediately cuts out suddenly
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation

Preliminarily check:

  • that there is no water, other fluid or dirt in the fuel tank
  • the state of the spark plugs and leads
  • the condition of the air intake circuit
  • for a possible obstruction in the catalyzer
 Continue to Step 1 Presence of dirt in the fuel tank Clean the fuel tank Op.   1040A10 
Spark plugs dirty or damaged Clean or replace the spark plugs Op.   5510D10 
Spark plug leads damaged Replace the spark plug leads Op.   5510D14 
Air intake circuit component damagedReplace the component (see Assembly 1048A)
Catalyzer obstructed Replace the catalyzer Op.   1080B62 
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
1.6 TS 2.5 V6Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket Check that there are no fault in the engine management control unit Continue to Step 2 An error is detected in the control unitContinue according to the instructions for the diagnostic equipment
Lack of dialogue with the control unit Restore the connection between the engine management control unit and the diagnostic connector ( See   E5030  PETROL ENGINE ELECTRONIC MANAGEMENT ).
1.8 TS 2.5 V6Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket Check that there are no fault in the engine management control unit Continue to Step 2 Idle failure detectedCarry out the idle procedure following the instructions ifor the diagnostic equipment
An error is detected in the control unitContinue according to the instructions for the diagnostic equipment
Lack of dialogue with the control unit Restore the connection between the engine management control unit and the diagnostic connector ( See   E5030  PETROL ENGINE ELECTRONIC MANAGEMENT )
2COIL CHECKAll OKProblems metOperation
2.5 V6Using the diagnostic equipment (Examiner or other instruments) carry out the active diagnosis of the coils Continue to Step 3 Coils connection faulty Restore the connection for the coils with the control unit, ( See   E5030  PETROL ENGINE ELECTRONIC MANAGEMENT )
Ignition coils faulty Replace the ignition coils Op.   5510C14 
1.6 TS 1.8 TS [d]

Check, in order:

  • coils supply
  • connection of the coils with the engine management control unit
  • connection of spark plugs to coils
  • operation of the coils
( See   E5030  PETROL ENGINE ELECTRONIC MANAGEMENT ). 		Continue to Step 3 Connections not correctRestore the connections
Ignition coils faulty Replace the ignition coils Op.   5510C14  .
3CHECK ON FUEL PRESSUREAll OKProblems metOperation
Check the fuel supply pressure Op.   0510C10  Continue to Step 4 Pressure not correct Replace the fuel pump assembly Op.   1056B70 
4CHECKING ALTERNATORAll OKProblems metOperation

Check:

  • that the alternator voltage regulator is working properly
  • the connections between the alternator and the battery
 Continue to Step 5 Voltage regulator not working properlyReplace the voltage regulator
Connections not correct Restore the connections ( See   E5010  STARTING AND RECHARING )
5CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'