I have a 94 4.0 ranger I've had a hard start problem when the truck was warm for a while and finally got it in a shop and read and they put a crank tps and water temp sensors on it it runs much better when it will start when it dosent it's because there is no spark atall but when it starts there is tons of spark would it br something with the ecm ? need help asap thanks in advance

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94 Danger Ranger 4x4 5spd