B13 ENGINE STARTS WITH DIFFICULTY' - Alfa - 156 - eLearn

3233006 - B13 ENGINE STARTS WITH DIFFICULTY'

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Preliminarily check: that the air filter is not blocked the condition of the air intake circuit	Continue to Step 1	Air intake circuit component damaged	Repair or replace the defective component
		Continue to Step 1	Air filter blocked	Replace the filter Op. 1048A10
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket Check: for errors in the control unit plausibility of all the parameters	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	unreliable parameters	Continue according to the instructions for the diagnostic equipment
2	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Carry out active diagnosis of canister solenoid	Continue to Step 3	Solenoid valve faulty	Replace the solenoid valve Op. 1080E26
3	PETROL VAPOUR RECOVERY SYSTEM CHECK	All OK	Problems met	Operation
	Check the petrol vapour recovery system seal	Continue to Step 4	Air leaks	Restore the correct seal
	Check the petrol vapour recovery system seal	Continue to Step 4	Pipes connected to supply broken	Replace the pipes Op. 1080E48
4	DELIVERY PRESSURE CHECK	All OK	Problems met	Operation
	Check that the fuel pressure is correct Op. 0510C10	Continue to Step 5	Fuel pressure too low: supply pipe obstructed	Eliminate the blockage; if necessary replace the pipe
	Check that the fuel pressure is correct Op. 0510C10	Continue to Step 5	Low fuel pressure: defective pump	Replace the pump assembly Op. 1040A70
5	CHECK ON TIMING	All OK	Problems met	Operation
	Check that the timing is correct Op. 0510A20	Continue to Step 6	Timing not correct	Restore the correct timing Op. 1032B14
6	CHECK ON CYLINDER COMPRESSION	All OK	Problems met	Operation
	Carry out the cylinder compression test Op. 0510A10	Continue to Step 8	Cylinder compression insufficient	Continue to Step 7
7	CHECK ON CAUSE OF INSUFFICIENT COMPRESSION	All OK	Problems met	Operation
	Carry out R/R on head to check the valve seal Op. 1016C10 Check the condition of the cylinders/piston rings	Continue to Step 8	Insufficient valve seal	Overhaul the cylinder head Op. 1016C10
		Continue to Step 8	Cylinders/piston rings worn	Repair the leak
8	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists: control unit faulty	Replace engine management control unit Op. 1056B82