B020 ENGINE STARTS AND CUTS OUT STRAIGHT AWAY - Fiat - GRANDE PUNTO - eLearn

The engine starts normally, though possibly with difficulty, then suddenly stalls

1	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
		Test results
	Connect the Examiner diagnostic equipment to the diagnostic socket. Check on the engine control node: that there are no errors in the control unit; parameter plausibility	Move on to Step 2	Error detected in the control unit	Continue following the instructions on the diagnostic equipment
		Move on to Step 2	Parameters not plausible	Continue following the instructions on the diagnostic equipment
2	CHECK SPARK PLUGS ARE INTACT	All OK	Problems encountered	Operation
	Remove the spark plugs and check their state and that the electrode gap is correct	Move on to Step 3	Spark plug fault	Replace the spark plugs Op. Op. 5510D10 SPARK PLUGS - R+R
3	SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check the fuel supply pressure with the ignition ON and the engine switched off Op. Op. 0510C10 FUEL SYSTEM - CHECK DELIVERY PRESSURE Start the engine and check that the supply pressure does not decrease	Move on to Step 4	The supply pressure decreases	Replace the petrol pump Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R
4	CORRECT OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists: control unit defective	Replace the control unit Op. 1056B82 INJECTION/IGNITION SYSTEM E.C.U. (ONE) - R + R