I have a 2007 Mondeo 2.0 L Duratec HE Engine that has a new Coil, Leads and Spark Plugs which is losing power and missing at low revs (1,500 RPM). It starts up fine, first go and sounds perfect after about 2,000 revs. The engine warning light came on last week, but has cleared. Has anybody got...

Was driving, luckily only about 1/4 mile from home when the car lost power when trying to accelerate. Could feel a fairly hefty judder from the engine as if misfiring. Could also smell a really strong sulphur-like smell. The missus said the exhaust smoke was quite black, although I'm not sure...