ECD SYSTEM > Black Smoke Emitted


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ OUTPUT DTC (RELATING TO ENGINE)

PERFORM ENGINE SPEED ACCELERATION (CHECK FOR BLACK SMOKE)

CHECK HARNESS AND CONNECTOR (IN ENGINE ROOM)

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)

INSPECT ELECTRIC EGR VALVE ASSEMBLY

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

READ VALUE USING INTELLIGENT TESTER (MAP AND ATMOSPHERE PRESSURE)

READ VALUE USING INTELLIGENT TESTER (ACCEL POSITION)

READ VALUE USING INTELLIGENT TESTER (INTAKE AIR AND INTAKE AIR TEMP (TURBO))

TAKE SNAPSHOT WHILE ACCELERATING WITH ACCELERATOR FULLY OPEN

CHECK SNAPSHOT (MAP AND TARGET BOOSTER PRESSURE)

INSPECT VACUUM HOSE

CHECK INTAKE SYSTEM

INSPECT TURBOCHARGER SUB-ASSEMBLY (MECHANICAL PROBLEM)

PERFORM ENGINE SPEED ACCELERATION (CHECK FOR BLACK SMOKE)

BASIC INSPECTION

REPLACE EXHAUST TAIL PIPE ASSEMBLY (DPF CATALYTIC CONVERTER)

CHECK INTAKE SYSTEM DEPOSIT

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

CHECK HARNESS AND CONNECTOR (SUCTION CONTROL VALVE - ECM)

CHECK IF FUEL IS BEING SUPPLIED TO FUEL SUPPLY PUMP

REPLACE SUPPLY PUMP

BLEED AIR FROM FUEL SYSTEM

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

REPLACE INJECTOR ASSEMBLY OF ALL CYLINDERS

PERFORM REGISTRATION AND INITIALIZATION

BLEED AIR FROM FUEL SYSTEM

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

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

BLEED AIR FROM FUEL SYSTEM

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

CHECK AND REPLACE CLOGGED FUEL PIPE (INCLUDING FUEL FREEZING) (FUEL TANK - FUEL SUPPLY PUMP)

BLEED AIR FROM FUEL SYSTEM

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

PERFORM REGISTRATION AND INITIALIZATION

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

CHECK IF FUEL IS BEING SUPPLIED TO FUEL SUPPLY PUMP

REPLACE SUPPLY PUMP

BLEED AIR FROM FUEL SYSTEM

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TEST THE FUEL LEAK)

REPLACE COMMON RAIL ASSEMBLY

BLEED AIR FROM FUEL SYSTEM

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED