Diagnostic Manual, Engines, Volume 4
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. |
|
Printable version
