CHECK ID CODE
Check that each injection compensation code registered in the injector assembly installed on each cylinder matches the ones registered in the ECM Click here.
If any of the codes do not match, follow the procedures below to correct the registration details and recheck the symptom.
Correct the registration details by following the procedures in "INPUT INJECTOR COMPENSATION CODE(S) INTO ECM" Click here.
After correcting the registration details, check if the same symptom occurs as when the vehicle was brought in.
Tech Tips
If it does not occur, the symptom may be caused by errors in injection compensation code registration.
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
Note
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
DRAIN ENGINE COOLANT
CAUTION:
Do not remove the radiator cap sub-assembly while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
Loosen the radiator drain cock plug and engine drain plug.
Remove the radiator cap, then drain the coolant.
Close the radiator drain cock plug.
Tighten the engine drain plug.
REMOVE NO. 2 INTAKE PIPE
Remove the 3 bolts, loosen the 2 bands, and remove the No. 2 intake pipe.
REMOVE NO. 1 AIR HOSE
Remove the 2 bolts and hose clamp, and then remove the No. 1 air hose.
REMOVE NO. 4 AIR HOSE
Loosen the 2 clamps and remove the No. 4 air hose.
REMOVE EGR COOLER SUB-ASSEMBLY
Separate the water by-pass hose.
Remove the 6 bolts and EGR cooler.
SEPARATE WIRE HARNESS AND CONNECTORS
Disconnect the 3 connectors, 3 connector clamps and bolt.
REMOVE EGR VALVE BRACKET
Remove the 4 bolts and bracket.
REMOVE WATER BY-PASS PIPE SUB-ASSEMBLY
Disconnect the hoses from the EGR valve assembly.
Remove the 3 bolts, 2 union bolts, and 4 gaskets and separate the water by-pass pipe sub-assembly.
REMOVE DIESEL THROTTLE BODY
Disconnect the 2 diesel throttle body connectors.
Remove the 2 bolts, 2 nuts and diesel throttle body.
REMOVE VENTURI ASSEMBLY
Remove the 4 bolts, 2 nuts and venturi from the intake manifold.
REMOVE OIL FILLER CAP SUB-ASSEMBLY
Remove the oil filler cap sub-assembly.
REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
Remove the 2 bolts and cylinder head cover sub-assembly.
REMOVE NO. 2 CYLINDER HEAD COVER SUB-ASSEMBLY
Remove the wire harness.
Remove the cylinder head cover cushion rubber.
Remove the 2 bolts and No. 2 cylinder head cover sub-assembly.
REMOVE INJECTION PIPE CLAMP
Remove the 2 nuts.
Remove the oil level gauge guide and O-ring, and then remove the 2 injection pipe clamps.
REMOVE INJECTOR ASSEMBLY
Using a union nut wrench (17 mm), loosen the 8 union nuts and remove the injection pipe sub-assembly.
Remove the 5 hollow screws and 5 gaskets, and then remove the nozzle leakage pipe.
Tech Tips
After removing the nozzle leakage pipe, put it in a plastic bag to prevent foreign matter from contaminating the injectors.
Using a small screwdriver, remove the 4 holder seals.
Remove the 4 bolts and the 4 nozzle holder clamps.
Note
Arrange the holder clamps and bolts in the correct order.
Remove the 4 injectors.
Note
Arrange the injectors in the correct order.
Remove the No. 2 cylinder head cover gasket from each injector.
Remove the O-ring from each injector.
REMOVE INJECTION NOZZLE SEAT GASKET
Remove the 4 injection nozzle seat gaskets from the cylinder head.