199002641 - S003 ENGINE KNOCKING
 | The customer complains of: Irregular combustion noise, engine cylinder head knock |
| Test results | ||||
| 1 | Ambient parameters check | All OK | Problems encountered | Operation |
|---|---|---|---|---|
| Select the following control unit at the diagnostic equipment: Marelli Diesel Injection 6F3 EOBD CAN (EP engine 1.3 JTD).Check the value of the following parameters:- Coolant temperature See Test 1060OE ENGINE COOLANT TEMPERATURE SENSOR OPERATION CHECK. Atmospheric pressure See Test 1060GD ATMOSPHERIC PRESSURE CHECK | Move on to Step 2 | - | - | |
| 2 | Intake circuit check | All OK | Problems encountered | Operation |
| Check that the air intake/vacuum circuit is working properly by carrying out the See Test 1048OA AIR INTAKE/VACUUM CIRCUIT CHECK | Move on to Step 3 | - | - | |
| 3 | Preheating relay active diagnosis | All OK | Problems encountered | Operation |
| Carry out the active diagnosis of the preheating relay, checking that the result is positive | Move on to Step 5 | The result of the active diagnosis is negative | Move on to Step 4 | |
| 4 | Check on operation of heater plugs | All OK | Problems encountered | Operation |
| Check that the heater plugs are working properly, by carrying out the See Test 5520CA CHECK GLOW PLUG OPERATION | Move on to Step 5 | - | - | |
| 5 | Feed circuit check | All OK | Problems encountered | Operation |
| Check the condition of the fuel supply circuit and make sure that it is working properly carrying out the See Test 1040OA FUEL SUPPLY CIRCUIT CHECK | Move on to Step 6 | - | - | |
| 6 | Ambient parameters check | All OK | Problems encountered | Operation |
| Select the following control unit at the diagnostic equipment: Marelli Diesel Injection 6F3 EOBD CAN (EP engine 1.3 JTD).Check the value of the following parameters:- Press. Diesel measured See Test 1060GH DIESEL PRESSURE CHECK- Pressure regulator opening (MPROP) See Test 1060GR CHECK OPERATION OF FUEL PRESSURE SENSOR ON RAIL | End of diagnosis | - | - | |