I had fault codes p0150 and p0174 i think thats what they were. It was codes for bank 2 sensor 1. So I bought two new 02 sensors and installed them on the exhaust pipe before the catalytic convertors. Now i'm getting multiple codes. They are current fault-p0154 & p0130. and pending fault codes p0155 & p0160. I don't know why i'm getting more codes now that I installed the new 02 sensors. I have driving the car about 10 miles and have cleared the codes on a OBD 2 and they keep coming back. also I feel vibration now when at ideal. I'm wondering if it's the cheap 02 sensors I bought. They are suppose to be for land rover discovery II but don't no if that would be the cause of all the codes. here is the 02 sensors I installed today. 2000 Land Rover Discovery O2 Oxygen Sensor - AM Autoparts

 

I tried the cheap sensors too. You get the cheap eBay ones? I shot the company a message and said they didn't work and they refunded my money. Didn't even ask for the sensors back, which tells me they know they're selling ****.

Anyway, switched to Bosch sensors and it works perfectly now. Nothing but OEM seems to work. Amazon seems to have the best price on them, so I'd try there.

 

I got them from AM auto parts. I usually look at the reviews from a site I havent used. This time I didn't and wish I did.

 

You get what you pay for.

Chinese made sensors attract codes.

The Discovery II
came with Bosch sensors.

Put those on.
You can get them on Amazon direct fit between $50 and $75

look at the codes
with

http://enginecodemaster.com

to figure them out.

 

Bought Bosch sensors at Advance Auto. I had multiple codes, found the RR one rubbed though the insulation on the frame (was routed around a nylon line on the frame) and was shorting causing codes for 3 of the 4 sensors, plus the sensor heating circuit, plus mixture codes, ... replaced the shorting one and no new codes in 400miles.


Hopefully you will be as lucky, bank 2 sensor 2.