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LAUNCH KES-200 Starting System Analysis
E-2
Fig.4-03
Select [2. D. L. I. DFS] from the main menu, the
system will enter the next sub-menu of function
selection of distributorless ignition, as shown in
Fig.4-04. It is to test the single ignition waveform of
two-cylinder ignition mode.
Fig.4-04
If [3. DISTRIBUTOR] is selected on the main menu as
shown in Fig.4-02, the unit will enter the function
selection menu for distributor ignition, as shown in
Fig.4-05. The five items can be used respectively for
testing the distributor ignition waveform of engine with
3-8 cylinders.
Fig.4-05
The user can select the corresponding test function
according to the vehicle model and test item. Press a
corresponding number key or use [
▲
] [
▼
] keys to
select the desired item, and then press [ENTER] key
to enter the corresponding ignition waveform test.
Description of Ignition Mode
z
D.L.I. (1 cylinder):
One spark plug is connected
to an ignition coil. It is able to test independent
ignition primary/secondary waveform for each
cylinder.
z
D.L.I. (2 cylinders):
Two spark plugs are
connected to one ignition coil (one of the plugs is
connected to positive terminal of ignition coil
while the other to negative terminal)
.
It is able to
test primary/secondary waveform of each
cylinder for two-cylinder ignition mode.
z
DISTRIBUTOR:
It is the traditional ignition mode.
The secondary high-tension signal of ignition coil
is distributed to each cylinder through distributor
for firing. It is able to test the primary/secondary
waveform of 3-8 cylinders with distributor.
Connections for Different Tests
When a test item on the main menu is selected, the
screen will remind the user to connect the test cable.
The connection is different for each type of ignition
system. The following connecting methods are typical
and can demonstrate how to test the engine no matter
with or without a distributor.
DISTRIBUTOR Mode
CONNECTION 1:
The connection for ignition
waveform test of engines with distributors is shown in
Fig.4-06. This method is applicable to engines with
secondary high-tension cores.