Sooo I get two codes P0031 HO2S heater control circuit high Bank 1 Sensor 1 and P1131 Oxygen Sensor Malfunction(Short Circuit). I purchased a new DENSO front oxygen sensor and threw it in. I recet the ECU and the CEL comes right back on within 5 seconds of the car being on. I erased it and reset the ECU again with no luck. I have been trying to put this car together and every time one thing is fixed, another one comes up. I just replaces the Throttle Position sensor due to a CEL and I get O2 codes now. Please help!