Operation CHARM
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Mercury
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1990
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Cougar/XR7 V6-232 3.8L
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Repair and Diagnosis
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Powertrain Management
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Testing and Inspection
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Reading and Clearing Diagnostic Trouble Codes
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Reading Diagnostic Trouble Codes
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Quick Tests
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3.1-4.0 - Check for Codes/Computed Timing Check
3.1-4.0 - Check for Codes/Computed Timing Check
Quick Test 3.1 & 4.0:
