D10 ENGINE IDLE IRREGULAR - Fiat - STILO - eLearn

3360209 - D10 ENGINE IDLE IRREGULAR

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Verify: the condition of the air intake circuit condition and correct operation of the air filter	Continue to Step 1	Faulty in the air intake circuit	Restore the air intake circuit
		Continue to Step 1	Air filter clogged	Replace the filter element Op. 1048A14
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Verify: that there are no errors in the control unit the plausibiilty of the parameters carry out active diagnosis of E.G.R. solenoid	Continue to Step 2	Error detected in the control unit	Continue following the instructions for the diagnostic equipment
			Implausible parameters	Continue following the instructions for the diagnostic equipment
			Lack of dialogue with the control unit	Restore the connection between engine management control unit and diagnostic connector See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
			Faulty solenoid	Check wiring continuity See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
			Faulty solenoid	Replace the solenoid valve Op. 1080C74
2	FUEL FILTER CHECK	All OK	Problems met	Operation
	Check the operation of the fuel filter	Continue to Step 3	Presence of water, petrol, paraffin or dirt detected	Clean the tank and pipes and replace the diesel filter cartridge Op. 1044B20
3	CHECKING VALVE CLEARANCES	All OK	Problems met	Operation
	Check that the valve tappet clearance is correct.	Continue to Step 4	Valve clearance incorrect	Adjust the tappets Op. 1036H10
4	CHECKING CYLINDER COMPRESSION	All OK	Problems met	Operation
	Carry out the cylinder compression test	Continue to Step 6	Insufficient cylinder compression	Continue to Step 5
5	CHECKING CAUSE OF INSUFFICIENT COMPRESSION	All OK	Problems met	Operation
	Carry out R.R. on head to check the valve seal and check the condition of the cylinders/piston rings	Continue to Step 6	Insufficient valve seal	Overhaul the cylinder head Op. 1016E10
6	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists: control unit defective	Replace engine management control unit Op. 1060G80 Search for the fault starting from another symptom'