Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1VD-FTV ENGINE CONTROL
CHECK WIRE HARNESS AND CONNECTOR IN ENGINE COMPARTMENT
PERFORM CONFIRMATION DRIVING PATTERN
READ OUTPUT DTC (RELATING TO ENGINE)
READ VALUE USING INTELLIGENT TESTER (INJECTION FEEDBACK VAL AND INJECTION VOLUME)
CHECK FUEL INJECTOR COMPENSATION CODE
CHECK ENGINE MOUNTING INSULATOR
CHECK EGR VALVE ASSEMBLY (No. 1 AND No. 2)
READ VALUE USING INTELLIGENT TESTER (ACTUAL THROTTLE POSITION)
IDENTIFY MALFUNCTIONING CYLINDER INJECTOR
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FUEL CUT FOR IDENTIFYING MALFUNCTIONING CYLINDER)
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FUEL CUT FOR IDENTIFYING MALFUNCTION)
CHECK CYLINDER COMPRESSION PRESSURE
CHECK MALFUNCTIONING CYLINDER INJECTOR FOR DEPOSITS
READ VALUE USING INTELLIGENT TESTER (INJECTION FEEDBACK VAL AND INJECTION VOLUME)
CHECK FUEL INJECTORS FOR DEPOSITS
READ VALUE USING INTELLIGENT TESTER (INJECTION FEEDBACK VAL AND INJECTION VOLUME)
ECD SYSTEM (w/o DPF) - Rough Idling or Excessive Engine Vibrations
DESCRIPTION
Malfunction Condition | Main Trouble Area | Related Trouble Area |
Rough idling or shuddering due to abnormal combustion Shuddering when starting vehicle due to clutch system malfunctions |
Fuel injector malfunctions Fuel injector sliding malfunction Fuel injector stuck closed Fuel injector stuck open Deposit in fuel injector Fuel injector circuit malfunction Clutch system malfunctions Clutch system (shuddering when starting) |
Fuel injector compensation code Fuel leak Engine mounting insulator Intake air system leakage Intake air system blockage EGR system Throttle valve system Fuel supply pump Low quality fuel Vehicle modifications Fuel filter air bleed problem Accessory problem (A/C, generator, etc.) ECM |
- HINT:
INSPECTION PROCEDURE
- NOTICE:
- HINT:
- Before troubleshooting, conduct the following:
1.CHECK MALFUNCTION CONDITION |
Identify when shuddering occurs.
Result | Proceed to |
When idling | A |
When engaging engine clutch at vehicle start | B (Clutch system shudders) |
|
| ||||
A | |
2.CHECK WIRE HARNESS AND CONNECTOR IN ENGINE COMPARTMENT |
Check the wire harness and connector connections of common rail system components.
- OK:
- The wire harnesses and connectors are connected securely.
|
| ||||
OK | |
3.PERFORM CONFIRMATION DRIVING PATTERN |
- HINT:
- Drive the vehicle according to the driving pattern below to allow the ECM to store DTCs relating to malfunctions of the fuel system, EGR system, and throttle valve. If DTCs are stored, problem areas can be identified.
Enter Check Mode ().
Fully warm up the engine.
Allow the engine to idle for 5 minutes or more.
Drive the vehicle at more than 40 km/h (25 mph) for 1 minute or more (procedure "A").
Decelerate and stop the vehicle (procedure "B").
Repeat procedure "A" and procedure "B" 4 times or more.
Stop the engine and wait for at least 10 seconds (procedure "C").
Repeat procedure "A" and procedure "C" described above to store DTCs relating to the EGR system and throttle valve.
Drive the vehicle at more than 70 km/h (43 mph) for at least 1 minute (to store DTCs relating to the fuel supply pump).
NEXT | |
4.READ OUTPUT DTC (RELATING TO ENGINE) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Enter the following menus: Powertrain / Engine / DTC.
Read pending DTCs.
Result | Proceed to |
No DTCs are output | A |
Engine related DTCs are output | B |
|
| ||||
A | |
5.READ VALUE USING INTELLIGENT TESTER (INJECTION FEEDBACK VAL AND INJECTION VOLUME) |
Connect the intelligent tester to the DLC3.
Start the engine, warm it up and turn the tester on.
Select the following menu items in order and read the values.
- Standard Value:
Item Engine Speed* Standard Range Description Injection Feedback Val #1 to #8 Idling -3.0 to 3.0 mm3/st Value of fuel injector injection volume compensates for differences in combustion condition of cylinders Positive values indicate control which corrects combustion degradationNegative values indicate control which corrects excessive combustion pressureIf problems exist, "Injection Feedback Val" may deviate from the -3.0 to 3.0 mm3/st rangeInjection Volume Idling 3.0 to 10 mm3/st Injection volume value controlled by ECU Controls NE signal, fuel temperature, engine coolant temperature, intake air temperature, boost pressure, atmospheric pressure, EGR volume, and MAFIf problems exist, "Injection Volume" may be outside the standard range
Result | Proceed to |
Standard range | A |
Injection Feedback Val #1 to #8 and/or Injection Volume outside standard range | B |
- HINT:
- *: The A/C switch and all accessory switches should be off with a fully warm engine.
|
| ||||
A | |
6.CHECK FUEL INJECTOR COMPENSATION CODE |
Read the fuel injector compensation code ().
- HINT:
- If the fuel injector compensation code is not correctly registered, it may cause malfunctions.
Check the fuel injector compensation code.
- OK:
- Compensation code of the installed fuel injector is the same as the code registered in the ECM.
|
| ||||
OK | |
7.RESET ECM |
Disconnect the cable from the negative (-) battery terminal for at least 2 minutes.
Reconnect the cable to the negative (-) battery terminal.
Check whether the malfunction has been successfully repaired by performing a driving test using the freeze frame data recorded at the time the malfunction occurred.
- OK:
- Malfunction has been repaired successfully.
|
| ||||
OK | ||
|
8.BASIC INSPECTION |
Check the fuel quality.
Check the fuel for air.
Check the fuel system for blockages.
Check the air filter.
Check the engine oil.
Check the engine coolant.
Check the engine idling speed and the maximum engine speed.
Check the vacuum pump.
- OK:
- Each inspection result is normal.
|
| ||||
OK | |
9.CHECK ENGINE MOUNTING INSULATOR |
Visually check that the engine mounting insulator is installed correctly and is not crooked or twisted.
- OK:
- No abnormalities.
|
| ||||
OK | |
10.CHECK INTAKE SYSTEM |
Check for air leakage and blockage between the air cleaner and turbocharger, and between the turbocharger and intake manifold.
- OK:
- No air leakage or blockage.
|
| ||||
OK | |
11.CHECK EGR VALVE ASSEMBLY (No. 1 AND No. 2) |
- HINT:
- For vehicles without EGR valve, perform troubleshooting from the next step.
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Enter the following menus: Powertrain / Engine / Active Test / Control the EGR Step Position or Control the EGR Step Position #2 / Data List / Actual EGR Valve Pos. or Actual EGR Valve Pos. #2.
When changing the Active Test value from 0 to 100%, check that Actual EGR Valve Pos. or Actual EGR Valve Pos. #2 smoothly changes to the set opening angle.
- OK:
- Value smoothly changes to within +/-10% of set opening angle.
- HINT:
|
| ||||
OK | |
12.READ VALUE USING INTELLIGENT TESTER (ACTUAL THROTTLE POSITION) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Enter the following menus: Powertrain / Engine / Data List / Actual Throttle Position and Actual Throttle Position #2.
Read the value.
- OK:
- Ignition switch ON:
- -5 to 5%
- Idling (warmed up engine):
- 0 to 90%
- Accelerator pedal fully depressed:
- -5 to 5%
Result | Proceed to |
NG | A |
OK | B |
|
| ||||
A | ||
|
13.IDENTIFY MALFUNCTIONING CYLINDER INJECTOR |
Follow the instructions in the table below according to the check result of the intelligent tester.
- HINT:
- This operation is based on the premise that the common rail pressure is normal.
- Standard Value:
Item Engine Speed* Reference Value Injection Feedback Val #1 to #8 Idling -3.0 to 3.0 mm3/st Injection Volume Idling 3.0 to 10 mm3/st
- HINT:
- *: The A/C switch and all accessory switches should be off, and the engine should be fully warmed up.
Injection Feedback Val #1 to #8 | Injection Volume | Proceed to |
3.0 mm3/st or more, -3.0 mm3/st or less | Less than 3.0 mm3/st | A |
Between 3.0 to 10 mm3/st (Normal) | B | |
More than 10 mm3/st | B | |
Between -3.0 and 3.0 mm3/st | Less than 3.0 mm3/st | - |
Between 3.0 to 10 mm3/st (Normal) | Normal | |
More than 10 mm3/st | C* |
- HINT:
- *: When the Injection Volume displayed on the tester is large despite the Fuel Press and Injection Feedback Val #1 to #8 in the Data List being normal, the fuel injector may be clogged. In this case, there may be deposits inside or outside the tip of the fuel injector.
Proceed to | Inspection Area | Description |
A | Inspect and repair cylinder fuel injector with revised injection volume of less than 3.0 mm3: Perform power balance inspection and identify malfunctioning cylinder Replace malfunctioning cylinder fuel injector |
Fuel injector of cylinder with abnormal value injects excessively large quantity of fuel |
B | Identify malfunctioning cylinders by conducting power balance inspection: Perform power balance inspection to identify malfunctioning cylinders Clean malfunctioning cylinder fuel injector, then check and repair it |
Fuel injector of cylinder with abnormal value injects excessively large quantity of fuel Fuel injection volume too low due to fuel injector nozzle being blocked by deposits Compression of cylinder with abnormal value decreases Fuel injector of cylinder with abnormal value injects excessively large quantity of fuel |
C | Inspect and repair all cylinder fuel injectors: Clean all cylinder fuel injectors, and then inspect and repair them |
All cylinder fuel injectors inject excessively small quantity of fuel: Injection volume too low due to all cylinder fuel injector nozzles being blocked by deposits |
- HINT:
|
| ||||
|
| ||||
A | |
14.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FUEL CUT FOR IDENTIFYING MALFUNCTIONING CYLINDER) |
Connect the intelligent tester to the DLC3.
Start the engine and turn the tester on.
Enter the following menus: Powertrain / Engine / Active Test / Control the Cylinder #1, #2, #3, #4, #5, #6, #7 and #8 Fuel Cut.
Check the 8 cylinders in sequence to identify any faulty cylinders by performing the power balance inspection.
- HINT:
NEXT | ||
|
15.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FUEL CUT FOR IDENTIFYING MALFUNCTION) |
Connect the intelligent tester to the DLC3.
Start the engine and turn the tester on.
Enter the following menus: Powertrain / Engine / Active Test / Control the Cylinder #1, #2, #3, #4, #5, #6, #7 and #8 Fuel Cut.
Check the 8 cylinders in sequence to identify any faulty cylinders by performing the power balance inspection.
- HINT:
NEXT | |
16.CHECK CYLINDER COMPRESSION PRESSURE |
Check the cylinder compression pressure ().
|
| ||||
OK | |
17.CHECK MALFUNCTIONING CYLINDER INJECTOR FOR DEPOSITS |
- HINT:
- If a fuel injector is contaminated with deposits, the injection volume deviates from the standard range. This may cause malfunctions.
Check the fuel injector for any deposits.
Result | Proceed to |
Deposits | A |
No deposits | B |
|
| ||||
A | |
18.CLEAN FUEL INJECTOR |
Wipe away deposits from the tips of the fuel injectors.
- HINT:
- Solvent or carbon removal agents help remove the deposits easily.
- NOTICE:
- Exercise extreme care not to damage the fuel injectors while wiping off the deposits.
NEXT | |
19.READ VALUE USING INTELLIGENT TESTER (INJECTION FEEDBACK VAL AND INJECTION VOLUME) |
Reinstall the fuel injector to the cylinder head.
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Start the engine and warm it up.
Enter the following menus: Powertrain / Engine / Data List.
Select the following menu items in order and read the values.
- Standard Value:
Item Engine Speed* Reference Value Injection Feedback Val #1 to #8 Idling -3.0 to 3.0 mm3/st Injection Volume Idling 3.0 to 10 mm3/st
- HINT:
- *: The A/C switch and all accessory switches should be off, and the engine should be fully warmed up. When the values are outside the standard range, deposits inside the fuel injector may be causing the problem.
- OK:
- Values are within the standard range.
|
| ||||
OK | ||
|
20.CHECK FUEL INJECTORS FOR DEPOSITS |
- HINT:
- If a fuel injector is contaminated with deposits, the fuel injection volume deviates from the standard range. This may cause malfunctions.
Check the fuel injector for any deposits.
Result | Proceed to |
Deposits | A |
No deposits | B |
|
| ||||
A | |
21.CLEAN FUEL INJECTOR |
Wipe away deposits from the tips of the fuel injectors.
- HINT:
- Solvent or carbon removal agents help remove the deposits easily.
- NOTICE:
- Exercise extreme care not to damage the fuel injectors while wiping off the deposits.
NEXT | |
22.READ VALUE USING INTELLIGENT TESTER (INJECTION FEEDBACK VAL AND INJECTION VOLUME) |
Reinstall the fuel injector to the cylinder head.
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Start the engine and warm it up.
Enter the following menus: Powertrain / Engine / Data List.
Select the following menu items in order and read the values.
- Standard Value:
Item Engine Speed* Reference Value Injection Feedback Val #1 to #8 Idling -3.0 to 3.0 mm3/st Injection Volume Idling 3.0 to 10 mm3/st
- HINT:
- *: The A/C switch and all accessory switches should be off, and the engine should be fully warmed up. When the values are outside the standard range, deposits inside the fuel injector may be causing the problem.
- OK:
- Values are within the standard range.
|
| ||||
OK | ||
|