Operation CHARM
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Ford
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1990
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Thunderbird V6-232 3.8L
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Powertrain Management
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Ignition System
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Testing and Inspection
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Pinpoint Tests
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Test F - Engine Running Code 18, Continuous Memory Code 49
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Steps F4 Through F5
Steps F4 Through F5
Codes 18 and 49 Steps F4 thru F5:
