Hi Folks, a fella i know has done an engine swap on his mk3.5 fiesta, he's put a 2.0 mondy zetec lump in it.

At present, we're trying to work out what crank sensor it needs ?

does it use the 2.0 mondy crank sensor or does it work with the original fiesta one work just as well ? The reason i ask is because it runs rough as fuck (but it does actually run) but he can't remember which one he 'installed'

Are there any other 'common' issues that go with this engine transplant ???

going up to have a proper look at the car tomorrow so can answer any queries while i'm standing next to it.