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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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