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Diagnostic Manual, Engines, Volume 4

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LOCATION:    9.4 ME - SFI (ME2.0)   >  36 Hydraulic Test Program - Test (Injector Test)


Hydraulic Test Program - Test (Injector Test)

Test scope Test connection Test condition Nominal value Possible cause/remedy
1.0   Injectors
Leakage test


3
(3A)
N3/10



21
(29C)
Fuel rail and fuel injectors removed.
Ignition: ON
Injectors must not drip. 2.0 ,
Replace any dripping injectors.
2.0   Injectors
Operation and spray pattern test


3
(3A)
N3/10



21
(29C)
Ignition: ON
Hold each injector (one after another) into a container and, using the self-made test harness, manually activate the injector by connecting harness banana plugs to socket box sockets 3 (-) and 2 (+).
Injectors must spray evenly
(Figure 1).
Replace defective injectors.