D10 ENGINE IDLE IRREGULAR - Fiat - PANDA - eLearn

2751026 - D10 ENGINE IDLE IRREGULAR

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	check the condition of the air intake circuit condition and correct operation of the air filter	Continue to Step 1	Air intake circuit ducts blocked	Repair the air intake circuit
		Continue to Step 1	Air filter blocked	Replace the filter element Op. 1048A14
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the Examiner diagnostic equipment to the diagnostic socket and check: for errors in the control unit Test electric EGR valveCheck the EGR is operating correctly, in particular that the EGR is not blocked open;	Continue to Step 2	Presence of one of the following errors: P0101, P1102	Continue to Step 4
			EGR faulty	Check the continuity of the wiring See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT and replace the EGR valve if necessary Op. 1080C74
			EGR valve blocked open	Restore correct operation of EGR system
			Presence of other errors in the control unit	Continue following the instructions for the diagnostic equipment
2	CHECK ON FUEL FILTER	All OK	Problems met	Operation
	Check fuel filter operation and cleanliness	Continue to Step 3	Presence of water, petrol, paraffin or dirt detected	Clean the tank and pipes and replace the diesel filter cartridge Op. 1080C74
3	CHECK FUEL PUMP	All OK	Problems met	Operation
	Use an Examiner to check fuel pump power uptake is correct by performing the test See Test 1040AA Check supply voltage and absorption current	Continue to Step 4	Pump defective	Replace the pump
4	CHECK FLOW METER	All OK	Problems met	Operation
	Using an Examiner, check that the sensor is working properly by carrying out the test See Test 1060GB Check on operation of air flow meter	Continue to Step 5	Flow meter signal too high	Replace the flow meter
5	PRESSURE REGULATOR CHECK	All OK	Problems met	Operation
	Replace the diesel pressure regulator and check that the fault is no longer present	End of diagnosisEnd of diagnosis	Fault persists	Continue to Step 6
6	Continue as instructed by the tester	All OK	Problems met	Operation
	Replace the pressure pump and check that the fault is no longer present	End of diagnosisEnd of diagnosis	Fault persists	Continue to Step 7
7	CHECK ON CYLINDER COMPRESSION	All OK	Problems met	Operation
	Carry out the cylinder compression test	Continue to Step 9	Cylinder compression insufficient	Continue to Step 8
8	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 9	Insufficient valve seal	Overhaul the cylinder head Op. 1016E10
			Cylinder geometry/dimension fault	Restore correct operation
			Piston ring fault	Restore correct operation
9	Continue as instructed by the tester	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosisEnd of diagnosis	Fault persists: control unit faulty	Replace engine management control unit Op. 1060G80