ENGINE (J05E)/TROUBLESHOOTING
2–480
e. Before the maximum common rail pressure exceeds 222 MPa during
pressure increase, the actual rail pressure falls below the target rail
pressure rapidly.
Replace the common rail.
f. The maximum common rail pressure exceeds 222 MPa during pres-
sure drop.
Check the return pipe.
g. The pressure is disturbed at a given speed and the pressure
decreases at higher speed.
Replace the supply pump.
Common rail pressure
Accelerator pattern
222 MPa
Time
Actual common rail pressure
Target common rail pressure
SHTS021270300446
Common rail pressure
Accelerator pattern
222 MPa
Time
Actual common rail pressure
Target common rail pressure
SHTS021270300447
Time
Common rail pressure
Engine speed pattern
The pressure is disturbed
at a given speed and the
pressure decreases at
higher speed.
Remains for 5 seconds or longer.
10 MPa or more
Actual common rail pressure
Target common rail pressure
SHTS021270300448