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1984
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Full Size Buick FWD V6-231 3.8L
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
A L L Diagnostic Trouble Codes ( DTC ): Testing and Inspection
Fig. 5a Code 42 chart (Part 1 of 9). Carbureted models (use this chart with HEI-EST ignition system diagnostic charts):
