how can I get my Renault trafic campervan to spark or start its 1995 2.2 pe?

My Renault trafic campervanrefuses to spark it wont start despite renewing most electricsl parts appart from the coil amplifier and seeking advice from mechanics and garage I am totally baffled
Would appreciate any advice thanks.its 1995 2.2 petrol.the coil amplifier number is 7700 860 482 motorola
vince, May 2014


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