Delphi common rail injectors are extremely sensitive to dirt, dust or metal
particles contamination, thus handling them requires special attention. All the
operations involving this type of injectors must be done in a dust-free
environment, special attention being paid to protect them with plastic caps
throughout the service process.
Besides reconditioning the injectors, in
most cases, in order to ensure proper functioning of the injection system is
absolutely necessary to repair the high-pressure pump (responsible for
generating the metal particles), to clean the fuel tank, pipes and rail and
replace the fuel filter only with genuine one.
The reconditioning process
involves: internal components ultrasonic cleaning, replaceing the return valve
and nozzle, reassembling the injector, restoring the delivery adjustments and
generating new hexadecimal code. >> see Common Rail Injectors section
