P0153 O2 Sensor Code

[bvahlberg]

Hi! So I’ve had a check engine light code for P0153 on for a few weeks now. I’ve replaced the O2 sensor 3 times, checked the heater circuit, checked the cat converter. Everything comes back fine, but the light keeps coming on after about 50 miles of driving. I’m not having any performance issues & I’m not burning through an insane amount of gas. Anyone have any ideas? Thank you!

 

[Chris]

What brand of O2 sensor did you replace it with?

 

[bvahlberg]

What brand of O2 sensor did you replace it with?

NTK/NGK sensors. I figured I may have gotten a bad one the first time, but I’ve changed it 3 times now with new sensors each time.

 

[Chris]

NTK/NGK sensors. I figured I may have gotten a bad one the first time, but I’ve changed it 3 times now with new sensors each time.

If I had to guess then, I would assume there is a wiring issue somewhere. It’s not uncommon to trace all the wires and find some that are exposed and therefore shorting out. Unfortunately this often takes some very careful detective work. It’s one of the last things people think to look at, when it should be the first.