199002949 - B013 ENGINE STARTS WITH DIFFICULTY

The customer complains that: Engine starting is poor, but the starter motor works normally.
Test results
1MODE PARAMETERS CHECKAll OKProblems encounteredOperation
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- Pressure regulator opening (MPROP) (only 90 bhp)    See Test 1060GR CHECK OPERATION OF FUEL PRESSURE SENSOR ON RAIL- Measured Diesel pressure    See Test 1060GH DIESEL PRESSURE CHECK- Engine rpm    See Test 1060GI CHECK ENGINE SPEEDMove on to Step 2
2PREHEATING RELAY ACTIVE DIAGNOSISAll OKProblems encounteredOperation
Carry out the active diagnosis of the preheating relay, checking that the result is positive
The check on the following system is only necessary if the outside temperature is below 0 °C.
End of diagnosisThe result of the active diagnosis is negativeMove on to Step 3
3GLOW HEATER PLUGS CHECKAll OKProblems encounteredOperation
Check that the glow heater plugs are working properly    See Test 5520CA CHECK GLOW PLUG OPERATIONEnd of diagnosis