| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
|---|
| First of all, check for water or other fluids in the fuel tank. | Move on to Step 1 | Presence of dirt in the fuel tank | Clean the fuel tank |
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket and check that there are no faults in the engine management control unit. | Move on to Step 2 | Error detected in the control unit | Continue following the instructions for the diagnostic equipment. |
| No communication with the control unit | Restore the connection between the engine management control unit and the diagnostic connector See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT |
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Keeping the diagnostic equipment connected, carry out the active diagnosis at the injectors | Move on to Step 3 | Injector connection faulty | Restore the connection between the injectors and the control unit See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT |
| Injector fault | Replace the injector Op. 1056F70 INJECTOR ONE R R WITH FUEL MANIFOLD PIPE REMOVED INCLUDES GASKET REPLACEMENT |
| 3 | CYLINDER HEAD GASKET CHECK | All OK | Problems encountered | Operation |
|---|
| Check:- that the cylinder head is correctly tightened;- the seal of the gasket | Move on to Step 4 | Cylinder head tightening incorrect | Restore correct tightening |
| Gasket damaged | Replace the damaged gasket. |
| 4 | BLOW-BY CIRCUIT CHECK | All OK | Problems encountered | Operation |
|---|
| Check the condition of the blow-by gas intake circuit. In particular, check for obstructions in the separator or pipes | End of diagnosis | Fault in the blow-by circuit | Restore circuit to working order: replace the pipes if necessary |
