citroen ax wont start?

the ax wont start, it did run fine then one day it started playing up, not starting even when warm. i've changed the coil pack but still no spark at plugs, what do i look at next. its a 1993 2 door 954cc salsa
paul packham, March 2007


done
its a cit ax tzx, the car idles fine when waiting in traffic etc then just cuts out and wont start for about a few mins. it turns over ok. ive wiggled the wire connection plug on the front of the inlet of the injector (mono) and it has helped sometimes but not this time. this happens when hot and cold

marco de abreu, November 2007
its the flywheel sensor,

p packham, May 2007
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