Engine starts, and cuts out straight away

Make: Alfa Romeo
Model: 147 Factory Service Manual
Year: 2000–2004
Section: Starting › Engine starts, and cuts out straight away

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Fault diagnosisEngine starts, and cuts out straight away

ENGINE STARTS, AND CUTS OUT STRAIGHT AWAY

1.6 TS, 2.0 TS

The engine starts, with difficulty and then immediately cuts out suddenly

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Preliminarily check: that the inertia switch has not cut in; the state of the spark plugs; connections and the state of the spark plug leads; absence of obstructions in the catalytic converter	Continue to Step 1	Operation of inertia switch	Restore correct operation
			Spark plugs dirty or damaged	Replace the spark plugs Op. 5510D10
			Spark plug leads damaged	Replace the cables
			Catalytic converter's obstructed	Replace catalytic converter/s
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 following the instructions for the diagnostic equipment
		Continue to Step 2	Unreliable parameters	Continue following the instructions for the diagnostic equipment
2	SUPPLY PRESSURE CHECK	All OK	Problems met	Operation
	With the ignition ON and the engine switched off, check the fuel supply pressure. Op. 0510C10 Start up the engine and check that the supply pressure does not decrease	Continue to Step 4	The supply pressure decreases	Continue to Step 3
3	CHECK PETROL PUMP ELECTRICAL CIRCUIT	All OK	Problems met	Operation
	Check the petrol pump supply and earth See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT	Continue to Step 4	Connections not correct	Restore the connections See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT
		Continue to Step 4	Pump faulty	Replace petrol pump Op. 1040A70
4	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists: control unit faulty	Replace control unit Op. 1056B82 Search for the fault starting from another symptom'

1.9 JTD 8V

The engine starts, with difficulty and then immediately cuts out suddenly

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Check, in order: that there is no water, other fluids or dirt in the fuel filter that there is no water, other fluids or dirt in the fuel tank that there are no obstuctions in the catalyzer	Continue to Step 1	There is water, other fluids or dirt in the fuel filter	Replace the filter element
			There is water, other fluids or dirt in the fuel tank	Cleaning tank
			Catalyzer obstructed	Replace the catalyzer
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket Recreate the conditions in which the problem occurs and check: for errors in the control unit plausibility of all the parameters	Continue to Step 2	Errors detected in the control unit	Continue following the instructions for the diagnostic equipment
			unreliable parameters	Continue following the instructions for the diagnostic equipment
			Lack of dialogue with the control unit	Restore the correct connections
2	HIGH PRESSURE CHECK	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket Check as described in Test 1060D that the diesel pressure parameter is correct	Continue to Step 10	Pressure not correct	Continue to Step 3
3	CHECK ON RETURN LOW PRESSURE	All OK	Problems met	Operation
	Check that the pressure in the return pipe to the tank is less than 1 bar. See Test 1060A Low return fuel pressure circuit check	Continue to Step 4	Pressure above maximum limit (return pipe to tank blocked)	Repair the pipe; if necessary replace it.
4	LOW SUPPLY PRESSURE CHECK	All OK	Problems met	Operation
	Check that the diesel pressure between filter and radial jet pump See Test 1060B Low fuel pressure supply circuit checkis between 2 and 3 bar.	Continue to Step 10	Pressure below minimum limit or above maximum limit	Continue to Step 5
5	LOW SUPPLY PRESSURE CHECK	All OK	Problems met	Operation
	Choke the return pipe downstream from the low-pressure regulating valve, checking that the pressure at the filter outlet remains below 2 bar See Test 1060B Low fuel pressure supply circuit check	Continue to Step 6	Pressure rises to 5 bar: blocked pressure regulation valve on filter support	Replace the valve Op. 1044B16
6	LOW SUPPLY PRESSURE CHECK	All OK	Problems met	Operation
	Check that the difference in pressure upstream and downstream of the filter is less than 1 bar	Continue to Step 7	Difference in pressure over 1 bar	Replace the fuel filter cartridge Op. 1044B16
7	LOW SUPPLY PRESSURE CHECK	All OK	Problems met	Operation
	Check that the pressure of the supply pump at the filter inlet is over 2.2 bar	Continue to Step 10	Pressure below 2.2 bar	Continue to Step 8
8	LOW SUPPLY PRESSURE CHECK	All OK	Problems met	Operation
	Measure the difference in pressure between electric pump outlet and filter inlet and check that it is less than 0.3 bar	Continue to Step 9	Difference in pressure over 0.3 bar	Replace the pipe
9	LOW SUPPLY PRESSURE CHECK	All OK	Problems met	Operation
	Check that the pump supply voltage is 12 V and that the absorbed current is between 2 and 10 amp. See Test 1040AA Check supply voltage and absorption current	Continue to Step 10	Voltage below 12 V	Check wiring, intervention on connection cables See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
			Current greater than 10 amp.: pump faulty	Replace the fuel pump assembly Op. 1040A70
			Current below 2 amp.: jet pump blocked	Replace fuel pump assembly Op. 1040A70and clean the fuel tank
10	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Replace theDRV high-pressure regulating valve and check that the fault is no longer present.	End of diagnosis	Fault persists	Continue to Step 11
11	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Replace the pressure pump and check that the fault is no longer present	End of diagnosis	Fault persists: control unit faulty	Replace engine management control unit Op. 1060G80 Search for the fault starting from another symptom'

All versions

The engine starts, with difficulty and then immediately cuts out suddenly

1	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Check, in order: if there is service information on the subject fuel cleanliness exhaust blockages spark plugs condition of the air intake circuit	Continue to Step 2	Impurities in the fuel	Clean the fuel tank
			Exhaust blocked (catalyzer)	Renew the exhaust pipe
			Spark plugs worn or not the type recommended by the manufacturer	Replace the spark plugs
			Air intake pipes faulty	Restore the air intake circuit
2	CHECKS USING DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment to the diagnostic socket and check: for errors in the control unit the plausibility of the parameters, in particular: engine temperature, rail pressure - rail pressure setting, injection times, air mass.	Continue to Step 3	An error is detected in the control unit	Continue according to the instructions for the diagnostic equipment
		Continue to Step 3	Unreliable parameters	Continue according to the instructions for the diagnostic equipment
2	LOW PRESSURE CIRCUIT CHECK	All OK	Problems met	Operation
	Check that the fuel pressure is correct	Continue to Step 3	Operating pressure or max. pressure not within the recommended limits	Check that the fuel pump is correctly supplied, that there are no blockages in the exhaust pipe and, if necessary, replace the petrol pump
3	CORRECT ENGINE TIMING CHECK	All OK	Problems met	Operation
	Check that the timing is correct	Continue to Step 4	Timing not correct	Ensure that the timing is correct
4	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

3.2 V6

The engine starts, with difficulty and then immediately cuts out suddenly

1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
		Results of the tests
	Connect the diagnostic equipment (Examiner or other instruments) to the tester input and check the engine management control unit: 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	SUPPLY PRESSURE CHECK	All OK	Problems met	Operation
	With the ignition ON and the engine switched off, check the fuel supply pressure. Op. 0510C10 Start up the engine and check that the supply pressure does not decrease	Continue to Step 3	The supply pressure decreases	Replace the fuel pump assembly Op. 1040A70
3	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists: engine management control unit defective	Replace engine management control unit Op. 1056B82

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Parts & tools for this job For 2000 Alfa Romeo 147

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