Hi There,
You mention
elsewehere here that "Bank 1 is driver's side and bank 2 is passenger side on a RHD car."
So its Pasenger side....I'd guess S1 is pre-cat ???
Ebay has them for £67
http://cgi.ebay.co.uk/Bosch-Lambda-S...d=p3286.c0.m14
Even has my AVP engine code !
However i guess replacing this will help my fuel economy and once done i will reset and see what comes back - Fix one prob at a time.
Ta,
Lee