10.2.4 Malfunction of the fuel system (XX34NN)
Tab 10-25 Fuel supply temperature is not in the permitted range
Indication Possible cause Procedure
TE3411A The fuel supply system is defec-
tive
•
Find the cause and repair the fault.
Tab 10-26 Fuel supply pressure at the engine inlet is too low
Indication Possible cause Procedure
PT3421A The fuel supply system is defec-
tive
•
Find the cause and repair the fault.
The fuel does not have the speci-
fied properties
•
Use correct fuel.
Tab 10-27 Fuel leakage flow from the fuel supply unit is too high
Indication Possible cause Procedure
LS3426-27A An HP fuel pipe or a fuel pump is
defective
•
Find the cause and repair the defective
item, refer to section 10.5 Examine the
supply unit for fuel leakage.
Tab 10-28 Temperature difference of the fuel outlet of the two fuel pumps is too high (for X35 or X40
engine)
Indication Possible cause Procedure
TE3431-nnA Flow control valve of a fuel pump
is defective
•
Clean or replace the defective flow control
valve.
One of the two fuel pumps is de-
fective
•
Replace the defective fuel pump.
•
As a temporary procedure, close the 3/2-
way valve 10-8752_E0_3-4 in the HP fuel
pipe of the defective fuel pump.
Tab 10-29 Leakage flow from the rail unit is too high
Indication Possible cause Procedure
LS3444-45A An item of the rail unit is defective
•
Find the cause and repair the defective
item, refer to section 10.6 Examine the rail
unit for leakage.
Tab 10-30 Fuel leakage flow from fuel rail items is too high (engine with FLV)
Indication Possible cause Procedure
LS3446A A flow limiting valve (FLV) or a
pipe is defective
•
Find the cause and repair the defective
item, refer to section 10.7 Examine the
FLV or fuel pipes for fuel leakage.
X35-B
AA00-0000-00AAA-410C-A
Operation Manual Malfunctions of systems and components
Winterthur Gas & Diesel Ltd.
- 375 - Issue 001 2019-10
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