Hello,

I have a slight running problem with my -96 RS2000. Sometimes it doesn't start well and sometimes the idle is jumping and car is obviously running very, very rich.. for example if I floor the gas Esco hesitates a while and coughs and then starts to pull.

I took the fault codes with my Draper reader and I got fault code 29 which is oxygen sensor 2 (cylinders 2 & 3) failure or mixture too lean/rich.

So it seems that I need new lambda sensor and the question is:
There is two sensors, another for cylinders 1 and 4 and another for cylinders 2 and 3... what's the difference between these two lambdas or are they the same and interchangeable?

I'm looking to order

http://www.ebay.co.uk/itm/1x-0258986...item4ab7c4b5e9

or

http://www.ebay.co.uk/itm/LS3779-Bos...item232a150362

All kinds of information and help is very welcome, since the car and the lambda-thing isn't that familiar to me... shit, miss my ersts2..

MANY THANKS ALREADY!!

-Jesse