Having fault code 00537 Lambda sensor keep coming up, is this located under the car or can it be got to from the top of the engine.

Finaly will my car have 1 sensor or 2, My local motor factor said there is 2 types one is about a metre in length.

Just wondered what i will have, Thanks.

Its a 98 MK Octavia 1.6 AEH Engine

there is a wideband one in the top of the exhaust manifold, then a normal narrow band one after the catalyst