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Century Custom
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Engine Control System Self-Diagnostics - 3.1L Engine
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Diagnostic Tests
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DTC P0121: TP Sensor Performance
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Conditions For Setting DTC
Conditions For Setting DTC
The TP sensor reading is more than a predicted value when the MAP is less than 50 kPa.
The TP sensor reading is less than a predicted value when the MAP is above 70 kPa.
The above conditions are present for 5 seconds.