Has any one experience of a wideband sensor failure? I did a trackday last year and ran for a long time with a badly broken ex manifold, suspect it severely overheated. Just had a new manifold made and now the wideband is just going from one end to the other. I've recalibrated it but cant get any sense from it. anyone know of a cheap supplier ?

have a word with these guys, i found them really helpfull and reasonably priced.

http://www.gendan.co.uk/

Mine went very quickly as well, the car over fueled and killed it in a very short space of time

Me to I had it in where condensation could get to the element.
Cheapest i could find was at graham goode racing and very quick delivery as well. I'd recommend them.