still get code p0139 after changing o2 sensor

Question

i had o2 code p0139. changed bank 2 o2 sensor, code has come back

Answer 1

HI there

This can usually be caused by several different issues. Here is a lost of possible causes for this code.

P0139 HYUNDAI - HO2S Circuit Slow Response Bank 1 Sensor 2

Read more: https://www.autocodes.com/p0139_hyundai.html