Honda civic code PO135 won't turn off with new o2 sensor?

Code reader said po135 which means O2 Sensor Heater Circuit Malfunction. Bought a new o2 sensor, changed it and then reset the dash board. The light stayed off while the car idled but came back on when I drove it with the same code. Someone on youtube said that if it doesn't idle properly, you probably have a dirty aic valve and that could be what is causing the o2 sensor not to work. The car idled fine but I tried cleaning it anyways, the same thing happened. Someone please help!

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