2427469 - B20 ENGINE STARTS, AND CUTS OUT STRAIGHT AWAY

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 decreaseContinue 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