DTC Parameters
WARNING: This page is about a different car, the 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Exhaust pipe moisture has evaporated (calculated engine run time between 0 and 30 seconds), then engine must run for longer than 80 seconds
- Calculated exhaust gas temperature is less than 1472°F (800°C)
- Main relay voltage is greater than 10.5 volts.
DTC sets if HO2S bank 1 sensor 1 signal is inactive (not fluctuating outside of the 400-538 mV range) for more than 6.4 seconds with commanded air/fuel ratio is 14.7 to 1; or both HO2S bank 1 sensor 1 and HO2S bank 1 sensor 2 signals are greater than 200 mV for more than 0.1 seconds when ECM is in fuel cutoff mode for more than 3 seconds; or HO2S bank 1 sensor 1 calculated internal resistance is greater than 20 k/ohms when commanded air/fuel ratio is 14.7 to 1.