I have a check engine light on, code P0135 (oxygen sensor heater problem bank 1, sensor 1)

I replaced the primary oxygen sensor (one right below the turbo) but the code comes back right after an obd2 delete. I tested the wiring, and the heater wires get 14volts at the oxygen sensor so wiring is fine. I don't know what the problem is.

Perhaps previous owner maybe used tuning software and maybe changes some setting in the ECU? Is that possible? What if I add a resistor to the first oxygen sensor heater wires, and leave the wires plugged in, could this help?

Haven't messed with Evo tuning yet so not sure if the software can change this setting. P.S. my secondary o2 isn't even there. I have a test pipe, and NO cat but yet I get no codes for the second o2??? I bought the car as is so trying to figure what the previous owner did here. Its weird I'm getting o2 code for first brand new o2 that's there but NO codes for the second o2 that isn't even there

Any suggestions are appreciated,