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Home >> Chevrolet >> 2001 >> Impala LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0121: TP Sensor Performance >> Code Enable Criteria
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Code Enable Criteria

DTC sets when TP sensor reading is more than a predicted value when MAP is less than 50 kPa, or TP sensor reading is less than a predicted value when MAP is more than 70 kPa. Condition must be present for more than 10 seconds.