Mike's Workshop Manuals
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Pontiac
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1982
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Grand Prix Base, 4.1L Eng VIN 4
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Repair and Diagnosis
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Engine Performance
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Engine Control Systems
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Computer Command Control
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Electronic Spark Control (ESC) Unit
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Notes
Electronic Spark Control (ESC) Unit: Notes
NOTE:
ESC unit is located between ECM and HEI/EST distributor. To locate, trace wiring from distributor to ECM.