Operation CHARM
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Mercury
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1993
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Cougar/XR7 V8-302 5.0L HO
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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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DN - EGR Valve Position Sensor/EGR Vacuum Regulator Solenoid
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DN21 - Rerun Self-Test With EGR Vacuum Disconnected
DN21 - Rerun Self-Test With EGR Vacuum Disconnected
Pinpoint Test DN20:
