Benthos
NAXJA Forum User
- Location
- Northern CA
After a slight vibration at idle on a 99 xj that sounded like a tank I finally bit the bullet and swapped out the manifold/ upstream O2.
Omg what a difference. It's like a new car.
I don't know how the fuel economy will change but should I do the down stream O2 as well?
The car is exempt from smog for me. I have no codes.
Some posters say it impacts performance, others it's only monitoring the CAT for emissions.
Thoughts?
Omg what a difference. It's like a new car.
I don't know how the fuel economy will change but should I do the down stream O2 as well?
The car is exempt from smog for me. I have no codes.
Some posters say it impacts performance, others it's only monitoring the CAT for emissions.
Thoughts?