Thanks for that, that's brilliant! At least I now know what I have got and the reason for the Rev limit. Does it effect the performance of the engine at all? (i.e. are the maps different?). I'm thinking that if all I need to do is send a wire or two to earth I may as well stick with it.
The photo is old, I haven't got an up to date one on my laptop. The MAF sensor is fitted.
There is currently an Ecu, key, Transponder kit on eBay from a '99 2.0ltr Mondeo. It doesn't state what transmission it is for but has the code BASH. Do you know if this would be suitable?
Thanks again for the reply, it's nice to get help from someone who knows their onions.
Smiler.