Note
When replacing the injectors (including shuffling the injectors between the cylinders), common rail or cylinder head, it is necessary to replace the injection pipes with new ones.
When replacing the fuel supply pump, common rail, cylinder block, cylinder head, cylinder head gasket or timing gear case, it is necessary to replace the fuel inlet pipe with a new one.
When replacing the common rail, do not remove the foreign object mixing prevention caps of the common rail until just before the fuel inlet pipe and injection pipe are connected to the common rail.
INSTALL COMMON RAIL ASSEMBLY
Install the common rail and No. 2 intake manifold insulator with the 2 bolts.
Connect the 2 connectors.
INSTALL FUEL INLET PIPE SUB-ASSEMBLY
Temporarily install the fuel inlet pipe with the union nuts.
Note
If the supply pump is replaced, the fuel inlet pipe must be replaced.
Keep the fuel inlet pipe free of foreign matter.
Install a new O-ring to the oil level gauge guide, and install the oil level gauge guide to the cylinder block.
Note
Apply a coat of engine oil to the O-ring.
Temporarily install the stay of the oil level gauge guide to the intake manifold with the bolt.
Install the clamp with the bolt.
Note
Install the clamp so that the fuel inlet pipe marking can be seen on both sides of the clamp.
Tighten the bolt of the oil level gauge guide stay.
Using a 17 mm union nut wrench, tighten the injection pipe union nut on the common rail side.
Tech Tips
Use a torque wrench with a fulcrum length of 30 cm (11.81 in.). If using a torque wrench with a length that is not 30 cm, calculate the torque specification for the torque wrench and union nut wrench based on the "without union nut wrench" torque specification Click here.
Make sure union nut wrench and wrench are connected in a straight line.
Using a 17 mm union nut wrench, tighten the injection pipe union nut on the supply pump side.
Tech Tips
Use a torque wrench with a fulcrum length of 30 cm (11.81 in.). If using a torque wrench with a length that is not 30 cm, calculate the torque specification for the torque wrench and union nut wrench based on the "without union nut wrench" torque specification Click here.
Make sure union nut wrench and wrench are connected in a straight line.
INSTALL NO. 2 NOZZLE LEAKAGE PIPE ASSEMBLY
Temporarily install the leakage pipe with the 3 bolts.
Temporarily install a new gasket with the check valve.
Tighten the 3 bolts and check valve.
Connect the 3 fuel hoses.
INSTALL NO. 4 INJECTION PIPE SUB-ASSEMBLY
Note
When replacing an injector, it is necessary to replace the 4 injection pipes with new ones.
Keep the joints of the injection pipe clean.
Temporarily install the No. 4 injection pipe with the union nuts.
Install the bolt.
Note
If an injection pipe clamp is removed from the No. 4 injection pipe, replace the injection clamp with a new one.
Make sure that the inner-rubbers of the injection pipe fit inside the clamp.
When installing the pipe, check that the inner rubbers and the clamp are in their proper positions.
Using a 17 mm union nut wrench, tighten the injection pipe union nuts on the common rail side.
Note
Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench Click here.
Using a union nut wrench, tighten the injection pipe union nuts on the injector side.
Note
Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench Click here.
INSTALL EGR COOLER WITH ELECTRIC EGR CONTROL VALVE AND NO. 2 EGR VALVE
Install the EGR cooler with electric EGR control valve and No. 2 EGR valve Click here.
INSTALL NO. 1, NO. 2 AND NO. 3 INJECTION PIPE SUB-ASSEMBLY
Note
When replacing the injector, also replace the injection pipe.
Keep the joints of the injection pipe clean.
Temporarily install the No. 1, No. 2 and No. 3 injection pipes with the union nuts.
Install the No. 2 and No. 3 injection pipe clamps with the 2 bolts and 2 nuts, as shown in the illustration.
Tech Tips
If the painted mark on the No. 1 injection pipe has disappeared, use the illustration as a reference to install the clamps.
Using a 17 mm union nut wrench, tighten the injection pipe union nuts on the common rail side.
Note
Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench Click here.
Using a 17 mm union nut wrench, tighten the injection pipe union nuts on the injector side.
Note
Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench Click here.
INSTALL OIL FILTER SUB-ASSEMBLY
Check and clean the oil filter installation surface.
Apply clean engine oil to the gasket of a new oil filter.
Lightly screw the oil filter into place by hand. Tighten it until the gasket contacts the seat.
Using SST, tighten the oil filter. Depending on the work space available, choose from the following.
If enough space is available, use a torque wrench to tighten the oil filter.
If enough space is not available to use a torque wrench, tighten the oil filter 3/4 turn by hand or with a common wrench.
INSTALL MANIFOLD STAY WITH VACUUM SWITCHING VALVE
Install the manifold stay with the 2 bolts.
Tech Tips
The manifold stay indented area (labeled A) must face the manifold.
INSTALL INTERCOOLER ASSEMBLY
Install the intercooler assembly Click here.
INSTALL FUEL TANK CAP ASSEMBLY
ADD ENGINE OIL
Wipe the oil pan and drain plug.
Install a new gasket and the drain plug.
Add new oil.
| Standard oil capacity | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Install the oil filler cap.
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
Note
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
BLEED AIR FROM FUEL SYSTEM
Using the hand pump mounted on the fuel filter cap, bleed the air from the fuel system. Continue pumping until the pump resistance increases.
Note
Hand pump pumping speed: Max. 2 strokes/ sec.
The hand pump must be pushed with a full stroke during pumping.
When the fuel pressure at the supply pump inlet port reaches a saturated pressure, the hand pump resistance increases.
If pumping is interrupted during the air bleeding process, fuel in the fuel line may return to the fuel tank. Continue pumping until the hand pump resistance increases.
If the hand pump resistance does not increase despite consecutively pumping 200 times or more, there may be a fuel leak between the fuel tank and fuel filter, the hand pump may be malfunctioning, or the vehicle may have run out of fuel.
If air bleeding using the hand pump is incomplete, the common rail pressure does not rise to the pressure range necessary for normal use, and the engine cannot be started.
Start the engine.
Note
Even if air bleeding using the hand pump has been completed, the starter may need to be cranked for 10 seconds or more to start the engine.
Do not crank the engine continuously for more than 20 seconds. The battery may be discharged.
Use a fully-charged battery.
When the engine can be started, proceed to the next step.
If the engine cannot be started, bleed the air again using the hand pump until the hand pump resistance increases (refer to the procedures above). Then start the engine.
Turn the ignition switch off.
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the intelligent tester on.
Clear the DTCs Click here.
Start the engine.*1
Enter the following menus: Powertrain / Engine and ECT / Active Test / Test the Fuel Leak.*2
Perform the following test 5 times with on/off intervals of 10 seconds: Active Test / Test the Fuel Leak.*3
Allow the engine to idle for 3 minutes or more after performing the Active Test for the fifth time.
Tech Tips
When the Active Test "Test the Fuel Leak" is used to change the pump control mode, the actual fuel pressure inside the common rail drops below the target fuel pressure when the Active Test is off, but this is normal and does not indicate a pump malfunction.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read Current DTCs.
Clear the DTCs Click here.
Tech Tips
It is necessary to clear the DTCs as DTC P1604 or P1605 may be stored when air is bled from the fuel system after replacing or repairing fuel system parts.
Repeat steps *1 to *3.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read Current DTCs.
| OK |
|---|
| No DTCs are output. |
INSPECT FOR OIL LEAK
INSPECT FOR FUEL LEAK
CAUTION:
During Active Test mode, engine speed becomes high and combustion noise becomes loud, so pay attention.
During Active Test mode, fuel becomes high-pressured. Be extremely careful not to expose your eyes, hands, or body to escaped fuel.
Check that there are no leaks from any part of the fuel system when the engine is stopped.
If there is fuel leakage, repair or replace parts as necessary.
Start the engine and check that there are no leaks from any part of the fuel system.
If there is fuel leakage, repair or replace parts as necessary.
Disconnect the return hose from the common rail.
Start the engine and check for fuel leaks from the return pipe.
If there is fuel leakage, replace the common rail.
Connect the intelligent tester to the DLC3.
Start the engine and push the intelligent tester main switch ON.
Select the Fuel Leak test from the Active Test mode on the intelligent tester.
If the intelligent tester is not available, fully depress the accelerator pedal quickly. Increase the engine speed to the maximum and maintain that speed for 2 seconds. Repeat this operation several times.
Check that there are no leaks from any part of the fuel system.
Note
A return pipe leakage of less than 10 cc (0.6 cu in.) per minute is acceptable.
If there is fuel leakage, repair or replace parts as necessary.
Reconnect the return hose to the common rail.
REMOVE NO. 2 ENGINE UNDER COVER
Install the under cover with the 4 bolts.
REMOVE NO. 1 ENGINE UNDER COVER
Install the under cover with the 4 bolts.