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Pontiac
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2002
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Firebird Base, 2D Convertible, Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System Self-Diagnostics - 3.8L
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Diagnostic Tests
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DTC P1220: Throttle Position Sensor Out Of Range
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Conditions For Setting DTC
Conditions For Setting DTC
The TP sensor 2 voltage is less than 0.25 volts, or more than 4.49 volts.