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Diagnostic Manual, Engines, Volume 4
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LOCATION:
9.1 ME - SFI (ME2.1)
> 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.
Replace dripping injectors,
2.0
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.