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Home >> Chevrolet >> 2006 >> Impala SS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 5.3L - DTC P0016 To DTC P0135 >> DTC P0121 >> DTC Descriptor

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0121: Throttle Position (TP) Sensor 1 Performance

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