0 like 0 dislike
268 views
by

PO430 on 2007 Nissan Xterra. Should I "start" by replacing O2 sensor 2 (rear sensor), or O2 sensor 1, (front sensor) , or even "both", before I replace a more expensive Cat? Thx!

Vehicle: 2007 Nissan Xterra, 4.0 l

1 Answer

0 like 0 dislike
by (8.3k points)
Instead of replacing the sensor, you could try using high octane gas for a couple of weeks, and if possible add a fuel additive, sometimes that will work too. If the code comes back, I wouldn't suggest replacing the sensor, usually the problem is that cat.

Related questions

1 like 0 dislike
2 answers 498 views
0 like 0 dislike
1 answer 949 views
0 like 0 dislike
1 answer 482 views
0 like 0 dislike
1 answer 981 views
0 like 0 dislike
0 answers 195 views
asked Sep 19, 2018 by anonymous

36.2k questions

32.2k answers

1.3k comments

22.8k users

Need A Repair Shop?
Find local automotive repair shops in your area.
Does your car have Safety Recalls? → Check here
...