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Inspection Procedure 3: Starts up and dies
 
 
 
 
COMMENT
In such cases as the above, the cause is usually improper air-fuel mixture. It is possible, though less likely, that the spark plugs are generating sparks but the sparks are weak.
 
 
TROUBLESHOOTING HINTS (The most likely causes for this case:)
  • 12V battery failed.
  • Fuel pump system failed.
  • Dirtiness around throttle valve.
  • Fuel injector system failed.
  • Ignition system failed.
  • Poor compression.
  • EGR system failed.
  • Contaminated fuel.
  • ECM failed.
 
 
DIAGNOSIS
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
1.STEP 1. Check the 12V battery.
Check 12V battery (Refer to ELECTRICAL & POWER CONTROL, Power Supply, Ground & Circuit Element – Basic Inspection – Battery Inspection – Work Flow Work Flow ).
Q: Is the check result normal?
Replace the 12V battery (Refer to ELECTRICAL & POWER CONTROL, Power Supply, Ground & Circuit Element – Removal and Installation – Battery Removal and Installation ).
 
2.STEP 2. Check the EGR valve (stepper motor).
Check the EGR valve operation sound [Refer to ENGINE, Engine, Motor and Emission Control – Emission Control – Exhaust Gas Recirculation (EGR) System EXHAUST GAS RECIRCULATION (EGR) VALVE (STEPPER MOTOR) CHECK].
Q: Is the check result normal?
Check the EGR valve itself [Refer to ENGINE, Engine, Motor and Emission Control – Emission Control – Exhaust Gas Recirculation (EGR) System EXHAUST GAS RECIRCULATION (EGR) VALVE (STEPPER MOTOR) CHECK].
 
3.STEP 3. Using scan tool (M.U.T.-III SE), read the DTC.
Use scan tool (M.U.T.-III SE) to check and see if a DTC is set in the ECM (Refer to HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODES).
Q: Is any DTC set?
Perform troubleshooting for the set DTC (Refer to DIAGNOSTIC TROUBLE CODE CHART).
 
4.STEP 4. Using scan tool (M.U.T.-III SE), check the data list.
Use scan tool (M.U.T.-III SE) to check the data list (Refer to DATA LIST REFERENCE TABLE).
  • Item number 50: Air Temperature Sensor
  • Item number 60: Coolant (Water) Temperature Sensor
  • Item number 70: Boost Sensor
  • Item number 80: Air flow Sensor
  • Item number A3301: Barometric pressure sensor
Q: Are the check result normal?
Perform the DTC classified check procedure for the sensor that has shown an abnormal data value (Refer to DIAGNOSTIC TROUBLE CODE CHART).
 
5.STEP 5. Using scan tool (M.U.T.-IIISE), perform the actuator test.
Use scan tool (M.U.T.-III SE) to perform the actuator test (Refer to ACTUATOR TEST REFERENCE TABLE).
  • Item number 20: Fuel pump
OK: Operating sound of fuel pump can be heard.
Q: Is the check result normal?
Troubleshoot "Inspection Procedure 12: Fuel Pump System" (Refer to Fuel pump system).
 
6.STEP 6. Check the throttle body (throttle valve area) for dirtiness.
Q: Is the throttle valve area dirty?
Clean throttle body (Refer to THROTTLE BODY (THROTTLE VALVE AREA) CLEANING ).
 
7.STEP 7. Check the timing mark on timing chain.
Check that the timing mark on the timing chain is properly aligned (Refer to ENGINE, Engine Mechanical – Camshaft CAMSHAFT REMOVAL AND INSTALLATION) ].
Q: Is the check result normal?
Align the timing marks (Refer to ENGINE, Engine Overhaul – Timing Chain TIMING CHAIN REMOVAL AND INSTALLATION ).
 
8.STEP 8. Check the fuel pressure.
Fuel pressure measurement (Refer to FUEL PRESSURE TEST ).
Q: Is the check result normal?
Repair it.
 
9.STEP 9. Check the fuel injector.
Check the number 1 cylinder fuel injector, number 2 cylinder fuel injector, number 3 cylinder fuel injector and number 4 cylinder fuel injector itself (Refer to FUEL INJECTOR CHECK).
Q: Are the check result normal?
Replace the faulty fuel injector (Refer to FUEL INJECTOR REMOVAL AND INSTALLATION).
 
10.STEP 10. Check the harness between IPDM E/R connector terminal number 66 and number 1 cylinder fuel injector connector terminal number 2, between IPDM E/R connector terminal number 66 and number 2 cylinder fuel injector connector terminal number 2, between IPDM E/R connector terminal number 66 and number 3 cylinder fuel injector connector terminal number 2, and between IPDM E/R connector terminal number 66 and number 4 cylinder fuel injector connector terminal number 2.
Check power supply line for damage.
Q: Are the check result normal?
Repair or replace the damaged connector, or repair the damaged harness wire.
 
11.STEP 11. Check the spark plug.
Check the number 1 cylinder spark plug, number 2 cylinder spark plug, number 3 cylinder spark plug and number 4 cylinder spark plug itself (Refer to ENGINE , Engine Electrical – On-vehicle Service SPARK PLUG CHECK AND CLEANING).
Q: Are the check result normal?
Replace the faulty spark plug (Refer to ENGINE , Engine Electrical – Ignition Coil IGNITION COIL REMOVAL AND INSTALLATION).
 
12.STEP 12. Check the ignition coil.
Check the number 1 cylinder ignition coil, number 2 cylinder ignition coil, number 3 cylinder ignition coil and number 4 cylinder ignition coil itself (Refer to ENGINE , Engine Electrical – On-vehicle Service IGNITION COIL CHECK).
Q: Are the check result normal?
Replace the faulty ignition coil (Refer to ENGINE , Engine Electrical – Ignition Coil IGNITION COIL REMOVAL AND INSTALLATION).
 
13.STEP 13. Check the compression pressure.
Check the compression pressure (Refer to ENGINE, Engine Mechanical – Engine Adjustment COMPRESSION PRESSURE CHECK ).
Q: Is the check result normal?
Repair it.
 
14.STEP 14. Check for air intake or exhaust leaks from the EGR valve, EGR cooler, EGR pipe and EGR intake pipe.
Check the EGR valve, EGR cooler, EGR pipe and EGR intake pipe [Refer to ENGINE, Engine, Motor and Emission Control – Emission Control, Exhaust Gas Recirculation (EGR) System EGR PIPING DAMAGE AND INSTALLATION CONDITION CHECK].
Q: Is the check result normal?
Repair the EGR valve, the EGR cooler, the EGR pipe or the EGR intake pipe.
 
15.STEP 15. Check the EGR valve contamination, the EGR cooler contamination, the EGR pipe contamination and the EGR intake pipe contamination.
Check the EGR valve, EGR cooler, EGR pipe and EGR intake pipe for stuck closed.
Q: Is the check result normal?
Repair the EGR valve, the EGR cooler, the EGR pipe or the EGR intake pipe.
 
16.STEP 16. Check fuel.
Check for entry of foreign matter (water, kerosene, etc.) into fuel.
Q: Is the check result normal?
Replace the fuel.
 
17.STEP 17. Check the malfunction symptoms.
Q: Does the malfunction symptom persist?
Replace the ECM (Refer to ENGINE CONTROL MODULE (ECM) REMOVAL AND INSTALLATION).
Intermittent malfunction (Refer to GENERAL INFORMATION, General Information – How to Use Troubleshooting/Inspection Service Points HOW TO COPE WITH INTERMITTENT MALFUNCTIONS).