Operation CHARM
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Lincoln
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1990
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Mark VII V8-302 5.0L HO
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Initial Inspection and Diagnostic Overview
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Diagnostic Strategies
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Required Test Equipment & Test Equipment Hook-Up
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Timing Light Hook-Up
Timing Light Hook-Up
The timing light is needed to check the computed
ignition timing
, which is controlled by the ECA. The timing light should be connected to the battery and No. 1 spark plug wire.