Technical lambda sensor Cinq Sporting

[crayon]

I have a Cinq Sporting that can run fine but every now and again the engine will hesitate, even if your not accelerating, i have done all the usual things, plugs, leads, oil, filters change but it is still happening.
This is leading me to believe the lambda sensor is playing up.
Is there anyway of testing it or does anyone have or know where i can get a really cheap one from, as i dont want to by a new one for it only not to be that at fault?
Thanks Jamie

 

[gazzaman2k]

i got a NGK one only been used for roughly <5000k i want £25 for it delivered cost me nearly £70 dont need it no more as using a LC1 wideband setup

 

[crayon]

Hi thanks for the offer but i was hoping for about £10 delivered am hoping that someone has a spare one that they really dont want. There is a link on here for the Alfa ones for only £25 new on ebay, I am looking to sell the car and i really dont want to spent £20-30 for one when i`m not 100% sure if it is at fault