I had a strange fault last week my engine was missfiring when i turned on the headlights
after checking the battery, alternator i found the coil pack was the fault.
luckly the coil is the same on the wifes 1.6 focus, so i swapped the part & the car was fine, then got new coil pack from local supplier for £20.

Hi Peter, and welcome along!

A very handy post, and a useful piece of information for other members!

Thanks

I forgot to mention the first fault was the speedo not working and fuel guage reading low and sounding low fuel alarm.
both are working fine now the new coil is fitted.