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My 1992 Ford Telstar XRI will not start.
it died on me on the way home and needed to be towed have replaced the dizzy and cam angle sensor
which helped for a few km but has not started since.
i have found it to have no spark but can not find the source?
Any ideas?

No spark could still possibly suggest something related to either of the parts you've replaced. However, there are numerous possible causes. The coil, power transister, a poor connection etc could all be potential causes.
It would be best to have a mechanic or auto-electrician carry out the diagnosis, as without pinpointing the fault, you could keep replacing parts until you stumble across the faulty component, which would be more expensive than an hour or so in labour cost to find the defective part.