O2 sensor 01 Maxima GLE

[pl11]

2001 Maxima GLE..SES light and code P0158..O2 sensor 2 in bank 2 high voltage...which one is it, HO2S2-B2 (red) or HO2S1-B2 (blue)...then how to access it?

[maxhopper]

HO2S2-B2 (red)

Raise the car, support it on jack stands, and crawl underneath. Use a 22mm wrench.

[pl11]

Thanks. Will wd40 work to loosen the old sensor?

[maxhopper]

That or some PB Blaster should work.

[maxhopper]

That or some PB Blaster should work. That particular sensor should be fairly easy to replace.