CHECK HARNESS AND CONNECTOR (IN ENGINE ROOM)
READ OUTPUT DTC (RELATING TO ENGINE)
TAKE SNAPSHOT DURING IDLING AND 3000 RPM
CHECK SNAPSHOT (FUEL PRESS AND TARGET COMMON RAIL PRESSURE)
CHECK SNAPSHOT (TARGET PUMP SCV CURRENT)
CHECK INJECTOR COMPENSATION CODE
CHECK SNAPSHOT (INJECTION FEEDBACK VAL #1 to #4)
CHECK TEMPERATURE WHEN ROUGH IDLING TROUBLE OCCURS
INSPECT ENGINE COOLANT TEMPERATURE SENSOR
CHECK PRE-HEATING CONTROL CIRCUIT
INSPECT ELECTRIC EGR VALVE ASSEMBLY
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (DIESEL THROTTLE TARGET ANGLE)
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
CHECK ENGINE MOUNTING INSULATOR
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
CHECK AND REPLACE FUEL INLET LINE
READ VALUE USING INTELLIGENT TESTER (FUEL PRESS AND TARGET COMMON RAIL PRESSURE)
CHECK HARNESS AND CONNECTOR (SUCTION CONTROL VALVE - ECM)
CHECK IF FUEL IS BEING SUPPLIED TO FUEL SUPPLY PUMP
READ VALUE USING INTELLIGENT TESTER (FUEL PRESS AND TARGET COMMON RAIL PRESSURE)
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
READ VALUE USING INTELLIGENT TESTER (FUEL PRESS AND TARGET COMMON RAIL PRESSURE)
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE CYLINDER #1 TO #4 FUEL CUT)
READ VALUE USING INTELLIGENT TESTER (ENGINE SPEED OF CYL #1 TO #4)
CHECK CYLINDER COMPRESSION PRESSURE OF MALFUNCTIONING CYLINDER
REPLACE INJECTOR ASSEMBLY OF MALFUNCTIONING CYLINDER
PERFORM REGISTRATION AND INITIALIZATION
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
REPLACE INJECTOR ASSEMBLY OF ALL CYLINDERS
PERFORM REGISTRATION AND INITIALIZATION
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
CHECK AND REPLACE CLOGGED FUEL PIPE (INCLUDING FUEL FREEZING) (FUEL TANK - FUEL SUPPLY PUMP)
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED