			Test results
1	COMPONENT CONCERNED	ELECTRICAL CONNECTIONS CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Connections on injector coils and Powertrain Control Module	Check for loose electrical connections on cylinder 2 coil connector, cylinder 2 injector.	Go to Step 2	Presence of loose electrical connections.	Restore the correct connections.
2	COMPONENT CONCERNED	WIRING CONTINUITY CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Coil and injector wiring	Check for breaks in the wiring continuity caused by oxidised or corroded terminals	Go to Step 3	Breaks in the wiring continuity.	Restore the correct continuity for the wiring.
3	COMPONENT CONCERNED	WIRING INSULATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Coil and injector wiring	Check that the wiring insulation is intact (possible short circuit to battery of coil and/or injector control)	Go to Step 4	Wiring insulation faulty.	Restore correct wiring insulation.
4	COMPONENT CONCERNED	SPARK PLUG CONDITION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Cylinder 2 spark plug	Check the condition of the spark plugs (fouling by engine oil or unburnt fuel)	Go to Step 5	Spark plugs fouled.	Replace spark plugs Op. 5510D10 SPARK PLUGS - R+R
5	COMPONENT CONCERNED	INJECTOR CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Cylinder 2 injector	Check that the cylinder 2 injector is working properly	Go to Step 6	Injector not working properly	Replace the injectors Op. 1056B68 SET OF INJECTORS - R + R WITH FUEL MANIFOLD PIPE REMOVED - INCLUDES SEAL REPLACEMENT
6	COMPONENT CONCERNED	COIL OPERATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Cylinder 2 ignition coils	Check the ignition coils are working correctly See Test 5510CI CHECK ON OPERATION OF IGNITION COILS	Go to Step 7	Ignition coils not working.	Replace ignition coils Op. 5510C14 IGNITION COIL/S - R.R.
7	COMPONENT CONCERNED	FUEL PRESSURE CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Low pressure fuel pump	Check that the low pressure fuel pump is working properly See Test 1040AB SUBMERGED FUEL PUMP CHECK	Go to Step 8	Fuel pump faulty	Replace the fuel pump Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R
8	COMPONENT CONCERNED	FUEL QUALITY CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Fuel	Check the quality of the fuel and check for the presence of water.	Go to Step 9	Fuel not compliant	Replace the fuel with fuel that is compliant
9	COMPONENT CONCERNED	CHECK FOR SEEPAGE IN INTAKE MANIFOLD	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Intake manifold	Check for any seepage in the intake/exhaust manifold	Go to Step 10	Seepage inside the intake/exhaust manifold	Restore correct operation
10	COMPONENT CONCERNED	CYLINDER COMPRESSION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Engine compression	Carry out cylinder compression test Op. 0520G15 COMPRESSION TEST - CHECK WITH EXAMINER WITH SPARK PLUGS/INJECTORS REMOVED	Go to Step 11	Cylinder compression insufficient	Go to Step 13
11	COMPONENT CONCERNED	CYLINDER HEAD TIGHTENING CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Cylinder head	Check the cylinder head correct tightening	Go to Step 12	Cylinder head tightening not correct	Restore the correct cylinder head tightening.
12	COMPONENT CONCERNED	CYLINDER HEAD GASKET SEALING CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Cylinder head gasket	Check the correct sealing of the gasket	Go to Step 13	Gasket damaged	Replace the cylinder head gasket Op. 1016C10 SINGLE CYLINDER HEAD - R.R. AND REPLACE GASKET
13	COMPONENT CONCERNED	CAUSE OF INSUFFICIENT COMPRESSION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Engine valves	After having removed the cylinder head Op. 1016C10 SINGLE CYLINDER HEAD - R.R. AND REPLACE GASKET check: - the valve seal;	Go to Step 14	Valve sealing insufficient	Overhaul the cylinder head.
14	COMPONENT CONCERNED	CAUSE OF INSUFFICIENT COMPRESSION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Engine cylinders	After having removed the cylinder head Op. 1016C10 SINGLE CYLINDER HEAD - R.R. AND REPLACE GASKET check: - cylinder/piston ring wear.	End of diagnosis	Cylinder/ring wear outside tolerances	Restore correct operating clearances.