when i bought the saxo vtr after about 2 weeks later it started to misfire so put ngk plugs in then about a mouth later it misfired again went to citroen they told me only use bosch plugs so put bosch super 4s in and now its started again wot else could it be
Coil pack failure is very common on these engines. Firstly ask a small garage to apply the correct contact grease to the pencil coils (which should cost a very small amount of money) just in case it's a contact problem.
If the problem persists then have the coil pack replaced.