ECD SYSTEM > Engine Difficult to Start or Stalling


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK ENGINE CRANKING CONDITION

CHECK BATTERY CONDITION

CHECK COMMUNICATION BETWEEN INTELLIGENT TESTER AND ECM

READ VALUE USING INTELLIGENT TESTER (CLUTCH SWITCH)

READ ALL OUTPUT DTCS

CHECK DOOR CONTROL TRANSMITTER FUNCTION (W/ ENTRY AND START SYSTEM)

CHECK STARTER SIGNAL CIRCUIT

CHECK FUEL RECEIVER GAUGE (AMOUNT OF FUEL)

READ OUTPUT DTC (RELATED TO ENGINE)

TAKE SNAPSHOT DURING STARTING AND IDLING

CHECK SNAPSHOT (TARGET PUMP SCV CURRENT)

CHECK SNAPSHOT (FUEL PRESS)

READ VALUE USING INTELLIGENT TESTER (FUEL PRESS)

CHECK INJECTOR COMPENSATION CODE

CHECK DATA LIST (INJECTION VOLUME AND INJECTOR FEEDBACK VAL #1 TO #4)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FUEL CUT FOR IDENTIFYING MALFUNCTIONING CYLINDER)

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

CHECK TEMPERATURE WHEN STARTING TROUBLE OCCURS

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

CHECK PRE-HEATING CONTROL CIRCUIT

CHECK FUEL QUALITY

CHECK ENGINE STARTING CONDITION

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 FUEL SUPPLY PUMP

BLEED AIR FROM FUEL SYSTEM

READ VALUE USING INTELLIGENT TESTER (FUEL PRESS)

INSPECT INJECTOR ASSEMBLY (INSPECTION FOR NOZZLE NEEDLE CLOSING PROBLEM)

REPLACE COMMON RAIL ASSEMBLY

BLEED AIR FROM FUEL SYSTEM

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

REPLACE INJECTOR ASSEMBLY OF MALFUNCTIONING CYLINDER

REPLACE INJECTOR ASSEMBLY OF ALL CYLINDERS

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)

ADD FUEL

BLEED AIR FROM FUEL SYSTEM

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

CHECK VC OUTPUT CIRCUIT

CHECK COMMUNICATION BETWEEN INTELLIGENT TESTER AND ECM

CHECK ECM POWER SOURCE CIRCUIT

CHECK COMMUNICATION BETWEEN INTELLIGENT TESTER AND ECM

PERFORM REGISTRATION AND INITIALIZATION

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED