I have a 95 disco I. i have code 45 popping up. Is that O2 sensors and if so where would these sensors be located at? I am very new to the land rover scene and still learning about them

any help would be appreciated

thanks
robert

 

On exhaust pipe ahead of the catalytic converters. The RAVE shop manual set covers the 95 D1, has b/w pix of locations, etc.

 

Is there 1 or 2?

 

I found them looks like there is two. Will this help my fuel economy at all by replacing them?