22 · Diagnostics

White exhaust fumes

Make: Fiat
Model: Multipla Factory Service Manual
Year: 1998–2010
Section: Emissions › White exhaust fumes

‹ Prev CO EMISSIONS LOW, NOx EMISSIONS HIGH Next › Black exhaust fumes

Fault diagnosisWhite exhaust fumes

WHITE EXHAUST FUMES

1.6 16v

There is a large amount of exhaust fumes, with light coloured smoke

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Preliminarily check: no water or other fluids in the fuel tank no leaks from the engine cooling system	Continue to Step 1	Detect and locate leaks	Clean the fuel tank Op. 1040A24
		Continue to Step 1	Detect and locate leaks	Restore the correct tightening, repair or replace the components involved (see Assembly 1088D) If the defect persists, See table X10
1	CHECK WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect 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 unit	Continue according to the instructions for the diagnostic equipment
		Continue to Step 2	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).
2	ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Using the diagnostic equipment (Examiner or other iinstruments) carry out the active diagnosis of the iinjectors.	Continue to Step 3	Injector connections faulty	Restore the connection of the injectors with the control unit, ( See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT)
		Continue to Step 3	Injectors faulty	Replace the injectors Op. 1056B70
3	CYLINDER HEAD CHECK	All OK	Problems met	Operation
	Check: that the cylinder head tightening is correct the gasket seal	Continue to Step 4	Cylinder head tightening not correct	Restore correct tightening
			Cylinder head damaged	Replace the gasket Op. 1016C10
			Cylinder head damaged	Replace the cylinder head Op. 1016C20
4	BLOW-BY CIRCUIT CHECK	All OK	Problems met	Operation
	Check the condition of the blow-by gases intake circuit. In particular, check that there are no obstructions in the separator or in the pipes	Continue to Step 5	Blow-by circuit faulty	Restore the correct operation of the circuit: if necessary, replace the pipes (see Assembly 1080D)
		Continue to Step 5	Fault in the separator	Replace the separator Op. 1080D34
5	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'

1.9 JTD 8V

There is a large amount of exhaust fumes, with light coloured smoke

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Preliminarily check: no water or other fluids in the fuel tank no leaks from the engine cooling system	Continue to Step 1	Detect and locate leaks	Clean the fuel tank Op. 1040A24
		Continue to Step 1	Detect and locate leaks	Restore the correct tightening, repair or replace the components involved (see Assembly 1088D) If the defect persists, See table X10
1	CHECK WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect 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 unit	Continue according to the instructions for the diagnostic equipment
		Continue to Step 2	Lack of dialogue with the control unit	Restore the connection between the engine management control unit and the diagnostic connector ( See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT).
2	ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Using the diagnostic equipment (Examiner or other iinstruments) carry out the active diagnosis of the iinjectors.	Continue to Step 3	Injector connections faulty	Restore the connection of the injectors with the control unit, ( See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT)
		Continue to Step 3	Injectors faulty	Replace the injectors Op. 1060F10
3	CYLINDER HEAD CHECK	All OK	Problems met	Operation
	Check: that the cylinder head tightening is correct the gasket seal	Continue to Step 4	Cylinder head tightening not correct	Restore correct tightening
			Cylinder head damaged	Replace the gasket Op. 1016C10
			Cylinder head damaged	Replace the cylinder head Op. 1016C20
4	BLOW-BY CIRCUIT CHECK	All OK	Problems met	Operation
	Check the condition of the blow-by gases intake circuit. In particular, check that there are no obstructions in the separator or in the pipes	Continue to Step 5	Blow-by circuit faulty	Restore the correct operation of the circuit: if necessary, replace the pipes (see Assembly 1080D)
		Continue to Step 5	Fault in the separator	Replace the separator Op. 1080D34
5	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'

‹ Prev CO EMISSIONS LOW, NOx EMISSIONS HIGH Next › Black exhaust fumes

Parts & tools for this job For 1998 Fiat Multipla

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