Check engine code P0136

[dannysanchez208]

Hi im hoping someone could help me with my 95 240sx.. so i switched out my o2 sensor by the header about 5 months ago and now i switched my second o2 sensor before the cat and my check engine light turned on the next day so i double checked if i tightened it right and plugged it in right and everything is good.. so now when i plug in my scanner it says

Oxygen sensor circuit bank 1 sensor 2 (see P2270, P2271)

Thank you for taking your time to read this.

Sent from my SM-G925T using Tapatalk

[kruked]

Warranty out the 02 sensor.

Edit: reset the ECU before you warranty it out. If the code pops back up, then warranty it out.