As the Piezo-Injector operates under maximum DC 200V, there may be a risk of an electric shock caused by shorted control line etc. So when repairing the injector or its wiring, disconnect the battery negative (-) terminal from the battery and wait for about 30 seconds.
Common Rail Fuel Injection System operates with extremely high pressure (approximately 1,800bar), so never perform any work on injection system with engine running or within 30 seconds after the engine stops.
Keep cleanly the parts and the working area.
Pay attention to a foreign substance.
Just before installing injector, tube or hose, remove the protect-cap attached on them.
Do not remove injector except for special case.
When installing Injector
Wash the contact area of the injector and replace the gasket with a new one.
To protect damage caused by shock, vertically insert the injector into the cylinder head.
Clean the connecting surface of the injector gasket on the cylinder head before installing the injector.
When installing High Pressure Fuel Pipe
Do not use again the used high pressure fuel pipe.
Install the flange nut correctly.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
Disconnect the injector connector (A) and the injector return line (B).
Remove the high pressure fuel pipe (C).
Before connecting the injector return line or after disconnecting the injector return line, check that the plug bush was completely raised from the plug. Otherwise fuel will leak around the injector’s nipple because of broken plug.
[DISCONNECTION-INJECTOR RETURN LINE]
Pull the plug bush upward with the plug grip pressed.
Seize the return line on both sides of the plug, and then disconnect the plug upward from the injector nipple.
Unscrew the injector clamp bolt (A), and then remove the injector (B).
If the injector adheres to the cylinder head, use the Special Service Tool (SST No.: 09351-4A300, 09351-4A310).
