Originally Posted by Chip-3Door

You need:

Wideband sensor
Wideband controller
Wideband gauge


There is NO car that you can pikey that lot off of in a scrap yard as the controllers are built into the ECU and they have no gauge.


You can get a sensor off certains cars, but thats the cheap bit anyway.


You are looking at 200 quid or so for a cheap setup.