108
Scope Multimeter Operations
Ignition
The Ignition tab of the Setup dialog box is used to configure the scope for displaying secondary
ignition patterns. There are two main selection fields (Type and Cylinders) and two fields that vary
depending upon the type of ignition system selected in dialog box (Figure 8-26).
Figure 8-26 Sample Setup Ignition dialog box
z To setup Ignition tests
1. Select the Setup icon to open the Setup dialog box.
2. Select the Ignition tab of the dialog box.
3. Highlight the ignition system for the test vehicle in the “Type” field:
– Standard—use for systems with a distributor
– Waste Spark—use for coil pack systems that fire 2 plugs simultaneously
– Direct—use for coil-on-plug systems
– Other—use for systems that do not fit any of the above categories
4. Select the number of cylinders for the test vehicle in the “Cylinders” field.
Scroll through the list using the up and down arrows on either side of the number.
5. This step varies depending upon the type of ignition system:
– If testing a Standard system, select the Firing Order.
– If testing an Other system, select the RPM Factor.
Scroll through the list of available choices using the up and down arrows below the
displayed firing order or RPM factor.
6. This step also varies depending upon the type of ignition system:
– If testing a Standard or Direct system, choose between Coil and Plug for the
Number 1 Trigger.
– If testing a waste Spark system, select the polarity of the firings using the +, –, and
arrow icons.
7. Select Back to return to the Preferences dialog box, or select Exit to close the dialog box and
return to the scope.
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