I decided for the 4/4 from -06 and it has now been mine for a couple of weeks. Sadly I have had some trouble with "knockings" when accelerating from low revs (ca 2000 rpm).
Have put new spark plugs in and it has helped a bit bit still not OK. Is there a knock sensor on the 1.8 Duratec?
Yes the 1.8 does have a knock sensor but also some of the Ford 1.8 Duratecs engines are prone to excessive pre ignition or “pinking” that the knock sensor cannot cope with (it’s a well-documented on the Ford forums). Mine drove me scatty. I tried cooler plugs and many other things. Contacted the factory in the end and they remapped it.
