P0128 - Thermostat Rationality P0129 - Barometric Pressure Out-of-range Low P0131 - O2 Sensor 1/1 Circuit Low P0132 - O2 Sensor 1/1 Circuit High P0133 - O2 Sensor 1/1 Slow Response P0135 - O2 Sensor 1/1 Heater Performance