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Mercury
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1997
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Grand Marquis V8-4.6L SOHC VIN 6
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Repair and Diagnosis
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Powertrain Management
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Testing and Inspection
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Pinpoint Tests
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FG - Octane Adjust (OCT ADJ)
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Test Notes
Test Notes
Enter this pinpoint test only when directed here.
This pinpoint test is intended to diagnose the following:
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Harness circuits: SIG RTN, Octane Adjust
(OCT ADJ)
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Octane shorting bar connector