P0140 or P0160
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the HO2S 2 signal voltage is between 401-519 mV, when the calculated exhaust temperature is less than 700°C (1,292°F).
- The ECM detects that the measured internal resistance of the HO2S is greater than 40,000 Ω, when the calculated exhaust temperature is greater than 450°C (802°F).
- The ECM detects either one of the above conditions for greater than 1 second.