Operation
0810−1/A1
Winterthur Gas & Diesel Ltd.
3/ 4
Problem Possible Cause Procedure
No ignition during engine start
(continued)
The high pressure circuit has leaks (fuel
pumps, HP pipes, fuel rail)
Find the cause and repair the
leaks.
The heating of the high pressure pipe to the
injection valves does not operate.
Set the heating lines to on.
A cylinder does not fire or
does not fire correctly when
starting
The ECS isolates the injection valves
(function)
Set the injection to on (see
4002−2, paragraph 3.7 Fuel
injection)
Injection is cut out Cut in the injection, see
0510−1, paragraph 2 and
4002−2.
The connections between the injection valve
and the flow limiter valve have a leak
Tighten the connections
correctly. Grind the sealing
faces
No electrical signal to the solenoid valve(s)
CV7201−08D, CV7201−08E
Do a check of the wiring. If
necessary replace the
solenoid valve(s)
The exhaust valve has a malfunction. No
electrical signal to the 4/2-way valve CV7201
to CV7208C
Do a check of the wiring and
4/2-way valves CV7201 to
CV7208C. If necessary
replace the defective 4/2-way
valve.
The injection nozzles have leaks. The
needles do not move.
Replace the injection valve.
The holes in the injection nozzle are blocked Replace the nozzle tip
Compression pressure in the cylinder is not
sufficient for fuel ignition.
Replace piston rings. Grind
the surfaces of valve head
and valve seat (see the
Maintenance Manual).
The exhaust valve spindle cannot move Replace the defective parts.
The CCM−20 power supply is disconnected,
the connector is removed or incorrectly
connected, the internal part(s) have become
defective.
Set the power supply to on.
Connect the connection.
Replace the CCM−20.
The piston in the exhaust valve control unit
20-5612_CX_2
or the pin in the 4/2-way
valve CV7201 to CV7208C cannot move.
Replace the 4/2-way valve
CV7201 to CV7208C, or the
exhaust valve control unit.
Exhaust valve control unit is cut out. Cut in the exhaust valve
control unit (see 0520−1,
paragraph 3.2).
Starting valves do not open, cannot move,
are damaged or receive no signal.
Do an overhaul or replace the
starting valves. Do a check of
the wiring.
2014
Problems during Engine Start and Stop
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