Operation CHARM
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Pontiac
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1992
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Firebird V6-191 3.1L
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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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Sensors and Switches - Computers and Control Systems
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Vehicle Speed Sensor
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Testing and Inspection
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Initial Inspection and Diagnostic Overview
Initial Inspection and Diagnostic Overview
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Check the ECM Fuse by visual inspection.
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Check that grounds G118 and G112 (V8 VIN F AND V8 VIN 8) are clean and tight.