My 1998 Disco I, 125,000 miles through a P0158 code, Bank 1, while on vacation. We had
it cleared. It came up a again after about 500 miles. Should I go ahead and replace the
sensor or is there something else that could cause it? Where is a good place to buy the
sensors? Replace all 4?

By the way we got pretty good mpg on this trip. Traveled about 1600 miles and had a
worse tank of 15.45 mpg and a best of 17.6 mpg.

Thank you,
Mike

 

If you have not replaced all the 02, with your mileage, they all need to be done, which can improve your mileage and power.

 

Were is a good place to buy the sensors? The price seems to very quite a bit.

Thank you,
Mike

 

AB will get you the right ones, they are not always the cheapest though. Just make sure that you dont get the universal kind. Get the right ones or you will have trouble.