[frisbeeguy]

Thanks, just kinda wondering what to attempt first.
I was thinking of replacing the O2 sensors but that'll be expensive & may not solve the problem? (what is causing the sensor to throw a code?)
It's got around 90,000 miles on it.
Can the O2 sensors go bad without something else causing the problem?
Do I have to replace all 4?
Can I replace the 2 front ones? (b4 cats)
Thanks