hi need a little help with car right i bought a focus auto with a fucked engine anyway bought a running engine out of same year but manual so stripped it all out and put all n the auto car changed flywheel and torque converter crank sencor built it ll up and it turns over but will not fire there is no spark and i dont no why am i missing something

ps its a 2000 1.6 auto focus zetec s engine
cheers all