Code Enable Criteria

• ECT more than 104°F (40°C) for 140 seconds.
• TP angle between 8-56 percent.
• Calculated airflow more than 5.5 grams per second for 140 seconds.
• No CKP, ECT, EVAP, fuel injector, fuel tank pressure, fuel trim, IAT, idle speed, MAP, misfire, PCM internal fault or TP sensor DTCs are set.

DTC sets when HO2S2 is inactive (voltage not fluctuating outside 425-460 millivolt range) for more than 125 seconds.