Conditions For Setting DTC
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 Pontiac Grand Prix, 2002 Pontiac Bonneville, 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, and 2002 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
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.