High pressure sensor
High pressure pump
High pressure sensor
High pressure pump
Test Procedure
- Remove the injector pipes from the rail
- ① Block the rail outlet using rail plug.
- Install the HP controller and set mode switch to
current mode
.
- Crank the engine and measure rail pressure.
※Refer to the 2-4 page.
SERVICE SPEC
BOSCH : Above 700 bar (With PRV Type)
Above 1000 bar (Without PRV Type)
DELPHI : Above 1000 bar
NOTE :
If measured rail pressure value was out of specification
check following items.
- Low pressure pump (or suction pump) and its strainer
(Including fuel tank)
- High pressure pump and IMV (Inlet Metering Valve)
If the vehicle problem is still persisted while rail pressure value is in
specification check whether the fuel pump was contaminated or
damaged.
3-2 HIGH PRESSURE TEST for each system
DELPHI SYSTEM (Without PRV type)
High pressure test without Injectors ( Step 2-3)
High pressure test without Injectors ( Step 2-4)
BOSCH SYTEM (Without PRV type)
7
COMMONRAIL PLUG
1
