3-66 FUEL SYSTEM (DFI)
Fuel Injectors (#1, #2: Service Code 41, 42)
If necessary, remove the screws [A] and the fuel hose [B],
and then take off the pressure regulator [C].
The screen [A] comes off from the pressure regulator [B].
Delivery Joint [C]
Clean the screen with a high-flash point solvent to remove
Clean the screen in a well-ventilated area, and take
care that there is no spark or flame anywhere near
the working area. Because of the danger of highly
flammable liquids, do not use gasoline or low-flash
Check the screen carefully for any damage: holes and
If the screen is damaged, replace it.
Remove the seal [A], O-ring [B], and seal ring [C]. Discard
them to prevent fuel and air leakage.
The screen [D] cannot be removed.
Tape the injector holes of the inlet manifold.
If dirt gets into the injector, injector clogging, ex-
cessive engine wear and possibly engine damage
The front and rear injectors are the same.
Replace the seal [A], O-ring [B], and seal ring [C] with new
ones, and install them onto the injector [D].
Apply engine oil to the O-ring, and install them onto the
To avoid air and fuel leak, be careful not to get dirt
or dust on the O-ring. Be careful not to damage the