Removal Procedure

CAUTION: Before removing the fuel injectors, be absolutely sure to eliminate the fuel pressure in the fuel rail. To do this, remove the pump relay and start the engine. Wait for the engine to stall.

NOTE: If the fuel injectors are leaking, the engine oil may be contaminated with fuel. Check the oil for signs of contamination and change the oil and the filter if necessary.

NOTE: Use care in removing the fuel injectors in order to prevent damage to the fuel injector electrical connector pins or the fuel injector nozzles. The fuel injector is an electrical component and should not be immersed in any type of cleaner as this may damage the fuel injector.

IMPORTANT: Fuel injectors are serviced as a complete assembly only.

Disconnect the negative battery cable.
Remove the common chamber. Refer to COMMON CHAMBER .
Remove the fuel rail. Refer to Fuel Rail Assembly .

Fig 1: Removing Fuel Rail
Courtesy of ISUZU MOTOR CO.
Remove the injector retainer clip.
Remove the fuel injector assembly. Refer to FUEL INJECTOR .
Remove the O-ring from the fuel injector.
Remove the O-ring backup from the fuel injector.