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Pontiac
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2008
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Grand Prix Base
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls And Fuel - 3.8L - DTC P0385 To DTC P2108
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DTC P2101
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Circuit/System Testing
Circuit/System Testing
Test the ETC ignition 1 voltage circuit for proper continuity.
If the circuit has proper continuity, replace the throttle body assembly.