Scope and Multimeter Operations Ignition Scope
134
Waste Spark
Waste Spark is used for coil pack systems that fire two plugs simultaneously.
1. Enter the Number of Cylinders.
2. Select the Firing Order.
3. Check the engine firing polarity and change the Polarity setting to match it by
using the + and - buttons.
Setup Notes:
– Connect the #1 trigger lead to cylinder #1.
– To test a single coil, set the number of cylinders to 2.
– When testing Wasted Spark systems, power firings will display on Channel
One and waste firings on Channel Two.
4. Refer to the following sections for additional ignition scope settings:
– Traces (Ignition Scope Trace Setup) on page 135
– Sweep (Ignition Scope Sweep Setup) on page 136
– Trigger (Ignition Scope) on page 137
For common settings within the Preferences menu, see Setup Menu (Preferences)
on page 108.
Figure 9-61
Direct Ignition
Direct is used for coil-on-plug systems.
1. Enter the Number of Cylinders.
2. Select the Firing Order.
Setup Notes:
– Plug is preset as the setting for Number 1 Trigger setting.
– Connect the #1 trigger lead to cylinder #1. (For vehicles without a plug wire,
this connection may not be possible. As an alternate method that may work,
try clamping around the #1 cylinder primary coil driver wire or all primary
wires if they are tightly bundled.)
3. Refer to the following sections for additional ignition scope settings:
– Traces (Ignition Scope Trace Setup) on page 135
– Sweep (Ignition Scope Sweep Setup) on page 136
– Trigger (Ignition Scope) on page 137
For common settings within the Preferences menu, see Setup Menu (Preferences)
on page 108.
Figure 9-62
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