COMMON RAIL SYSTEM
V3800-CR-TE4,V3800-CR-TIE4, DM
1-S60
10. Check the Data Related to Pressure Control
1. Measure the "Target rail pressure" and "Actual rail pressure"
when accelerator is operated as indicated below using the
diagnosis tool data monitor function.
9Y1200192CRS0896US0
11. Check the Injector (Including the Pipes, etc.)
1. Perform the diagnosis tool active test (stopping the injector
injection by cylinder) and check the injector performance.
9Y1200192CRS0075US0
Factory
specification
The "Actual rail pressure" always follow to the "Target rail
pressure".
1. When idling:
40 to 50 MPa (410 to 500 kgf/cm
2
, 5800 to 7200 psi)
2. Accelerator opening
0
→
100 % (During acceleration):
Maximum value 95.0 to 130 MPa (969 to 1320 kgf/cm
2
,
13800 to 18800 psi)
3. No-load maximum speed:
95.0 to 115 MPa (969 to 1170 kgf/cm
2
, 13800 to
16600 psi)
4. The numerical value is stable under normal operating and
the target value corresponds with actual pressure value.
OK
Go to "11. Check the Injector (Including the Pipes, etc.)".
NG
(Check the trouble related to pressure
Refer to the pressure system items (P0087, P0088, P0089 and P0093
(Refer to page 1-S129)) and SCV abnormality items (P0628 and P0629
(Refer to 1-S209)) in "5.[2] DIAGNOSTIC PROCEDURE BY DTC",
perform diagnosis for the ECU, wiring harness and sensor, and repair or
replace the required parts.
NOTE
•
Some diagnosis items above may be mentioned twice.
(a) CAN1 Connector
Factory
specification
Engine vibration and noise are increased and the rotation
speed is reduced when the injection for the corresponding
cylinder is stopped.
The same results must be attained from all the cylinders.
OK
Go to "12. Check the Engine".
NG
Check and repair faulty parts including the high pressure line of the
defective cylinder.
(a) CAN1 Connector
KiSC issued 05, 2012 A
