| | Results
of the tests |
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|
| Check
the condition of the air filterCheck the state of the spark plugs | Continue to Step 1 | Filter element dirty or
damaged | Replace
the filter element Op. 1048A14 |
| Spark plugs dirty or damaged | Replace the spark plugs Op. 5510D10 |
| 1 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Connect
the diagnostic equipment (Examiner or other instruments) to the
diagnostic socketCheck that there are no faults in the engine management control
unit | Continue to Step 2 | An error is detected in
the control unit | Continue following the instructions for the diagnostic
equipment |
| Lack of dialogue with the control unit | Restore the connection between the engine management
control unit and the diagnostic connector See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT |
| 2 | CHECK ON INJECTORS | All OK | Problems met | Operation |
|---|
| Using
the diagnostic equipment (Examiner or other instruments) carry out
the active diagnosis of the injectors | Continue to Step 3 | Injector connections faulty | Restore the connection of
the injectors with the control unit See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT |
| Injectors faulty | Replace the injectors Op. 1056B70 |
| 3 | CHECK ON FUEL PRESSURE | All OK | Problems met | Operation |
|---|
| Check
the fuel supply pressure Op. 0510C10 | Continue to Step 4 | Pressure not correct (too
high a pressure is indicative of excessive consumption) | Replace the fuel pump assembly Op. 1040A70 |
| 4 | CHECKING AIR CIRCUIT | All OK | Problems met | Operation |
|---|
| Check
the condition and seal of the air supply circuit | Continue to Step 5 | Circuit component damaged | Replace the component |
| 5 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists | |
