I have a 2000S V8

My check engine light came on so I had the car hooked up and the codes run as suggested. The codes said I had an O2 sensor issue. The O2 sensors were changed and the car ran and felt great and still does! However the engine light is back on after just a few hundred miles.

The forum suggested in another thread that the catalytic converter could be the issue but that's brand new and in good shape. I also passed an emissions test which I assume would have detected an issue with it if there was one.

I was hoping you could throw some of your knowledge my way as I don't have an experienced Jag shop in my area and haven't yet tried out the only dealer in my area just yet!

 

year, model, engine???????

 

They're so cheap to buy - get yur own OBD tool such as elm327. Cheaper than almost any part you may replace.