Hi all. I am a newbie but just wanted to say great forum already saved me $200 and I have only owned my 2000 d2 for a week.

My knowledge of autos in general is poor so please be patient.

I have a bad o2 sensor (Bank1 Sensor2).

My questions are where is it located? Is it an easy or cheap fix? Can someone with my limited car knowledge replace it easily? and what are the results if I don't replace it straight away.

Thanks in advance.

 

That oxygen sensor is on the left exhaust pipe behind the catalytic converter. The rear sensors are easier to change than the front ones. You will need to get an oxygen sensor socket from a local parts store ($5-$15) and the sensor itself (others will chime in with who has the best price on that sensor these days). I would advise soaking the sensor with penetrating lubricant (PB Blaster) the night before so it will be easier to remove. Just unclip it from the wiring harness, remove it with the socket, put in the new one, reconnect wiring.

If you decide not to replace it, your check engine light will remain on, and you will not be made aware if something worse happens which would normally turn on the light (because the light is already on). Spike can chime in here, but all the O2 sensors behind the converter do, is make sure the converter is working. It will not effect fuel economy. So the only harm in not changing it is the light remaining on, and not knowing if there are any new problems.

 

About $60 from amazon.

 

Thanks morpheus. I take it the bank1 sensor 2 is the one located behind the CAT?

 

Yes. Bank 1 is the left side, bank 2 the right side. Sensor 1 is in front of cat, sensor 2 is behind the cat.

 

I forgot to mention, NTK is OEM for Land Rover and actually makes most of the ones boxed as other brands.

 

i agree amazon, just don't buy a generic.

 

Also, not knowing what your mileage is, but if you are close to 100,000 miles or over, replace all 4 to improve you air/fuel mixture and increase your power and MPG.

 

Thanks for all the help. I really appreciate it.

I cleared both codes and the SES light went off. However this week it came back on again. No O2 codes, Just p0440(evaporation system).

Could these codes be linked?

 

No. How many miles on your truck?