You can use a universal lambda sensor, they are very good these days, think I got my last ones from ecolambda, around £30.
The plug colour may be a ford thing but does not denote the type, the wire colours denote the type, basically does it have a red or not ?, I'm guessing no as with most fords, so will no doubt be a standard 4 wire black grey and 2 whites ?
tabetha