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Home >> Chevrolet >> 2002 >> Prizm Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 1.8L >> Diagnostic Tests >> DTC P0121: TP Sensor System Performance >> Conditions For Setting DTC
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Conditions For Setting DTC

The vehicle speed has exceeded 19 MPH (30 km/h), and the output value of the throttle position sensor is out of the applicable range.

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