Engine vibrating

[Calpin]

misfire; change the plugs, fit ngk . if its still misfiring try leads and lastly a coil pack (most expensive item)

it will be getting a full service when i get the access to the ramp, and i had to replace a coil pack on my ford puma but it didnt sound anything near the same. there is also a petroly smell too. could it be the cat, i hope now.