312000564 - D020 ENGINE CUTS OUT WHILST RUNNING (THEN DOES NOT RESTART)
 | The engine cuts out while in gear, and it is impossible to restart it |
| Test results | ||||
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
|---|---|---|---|---|
| Check that the fuel cut off has not been activated Check the following, in order:
| Move on to Step 1 | 1. Fuel cut off activated2. No fuel3. Fastening slack or oxidized4. Presence of dirt in the fuel tank5. Circuit obstructed | 1. Restore correct operation by carrying out theSee Test 2. Add fuel to the tank3. Restore correct fastenings4. Introduce fuel into the tank, clean the tank and pipes and replace the filter element5. Restore to correct operation. | |
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket and check:
| Move on to Step 2 | 1. Error detected in the control unit.2. Impossible to activate a dialogue with the control unit | 1. Continue following the instructions on the diagnostic equipment2. Move on to Step 2 | |
| 2 | CONTROL UNIT POWER SUPPLY CHECK | All OK | Problems encountered | Operation |
| Check that the engine control unit is receiving the correct power supplyCheck the continuity of the supply wiringCheck the continuity of the engine compartment control unit fuses See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT | Move on to Step 3 | 1. Main relay defective2. Control unit power supply wiring defective3. Power supply fuses blown | 1. Replace the relay2. Restore correct wiring.3. Replace the blown fuses after having ascertained the cause of the problem | |
| 3 | ROAD TEST USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
Carry out a road test reproducing the conditions in which the fault occurs, keeping the diagnostic equipment connected and check:
| Move on to Step 4 | 1. The sudden onset of errors in the control unit is detected2. Parameters off the scale.3. Loss of dialogue between the control unit and the diagnostic equipment. | 1. Continue following the instructions on the diagnostic equipment2. Continue following the instructions on the diagnostic equipment3. Restore the correct connections. | |
| 4 | IGNITION SYSTEM CHECK | All OK | Problems encountered | Operation |
| Check the continuity of the supply wiringCheck that the ignition coils are working by carrying out the See Test 5510CI IGNITION COIL OPERATION CHECK | Move on to Step 5 | 1. Power supply wiring to coils broken2. Defective coils. | 1. Restore correct wiring.2. Replace coils Op. 5510C14 IGNITION COIL/S - R.R. | |
| 5 | INJECTION SYSTEM CHECK | All OK | Problems encountered | Operation |
| Check the continuity of the supply wiring See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT | Move on to Step 6 | Power supply wiring to injectors broken | Restore wiring | |
| 6 | FUEL PRESSURE CHECK | All OK | Problems encountered | Operation |
| Carry out a road test and check the fuel supply pressure in the conditions in which the problem occurs.Check that the fuel lines are not blockedCheck that the fuel pump is working properly by carrying out the See Test 1040AB SUBMERGED FUEL PUMP CHECK | Move on to Step 7 | 1. Fuel pressure too low: pipes obstructed2. Fuel pressure too low: pump defective. | 1. Eliminate the constrictions, replace the pipes if necessary2. Replace the fuel pump assembly Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R | |
| 7 | CORRECT OPERATION CHECK | All OK | Problems encountered | Operation |
| Check that the engine control unit is working properly. | End of diagnosis | Engine management control unit defective. | Replace the engine management control unit Op. 1056B82 INJECTION/IGNITION SYSTEM E.C.U. (ONE) - R + R | |