Diagnostic Manual, Engines, Volume 2
Hydraulic Test Program - Test (Injector Test)
Test step
DTC |
Test scope
|
Test connection |
Test condition
|
Nominal value
|
Possible Cause/ Remedy 1)
|
1.0 |
Injectors
Leakage test |
29
(1.29) |
N3/4
|
39
(1.39) |
Fuel rail and fuel injectors removed.
Ignition: ON |
Fuel injectors must not drip. |
Replace dripping injectors,
2.0 |
2.0 |
Injectors
Operation and spray pattern test
|
29
(1.29) |
N3/4
|
39
(1.39) |
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 32 (-) and 39 (+).
|
Fuel injectors must spray evenly
(Figure 1). |
Replace defective injectors. |
1) Observe Preparation for Test, see 22 . |
|