vibration through cabin

[Olly]

Get the odd miss and vibration through cabin at idle and the mpg has dropped since i bought the car. Is this vibration normal and me driving uneconomically or are there a common fault with these i.e coilpacks or plugs?

Im a technician so fixing isent a problem just wanted to start by replacing the parts that sometime have common problems if any?

Thanks olly

 

[Yiannis197]

Engine mounts ok?

 

[Olly]

yup engine mount are fine it is defantly miss-firing