How do you make a Particle Emitter that is placed in the character's torso when they enter the game?

I am trying to make a Particle Emitter trail script that adds a Particle Emitter to the character's torso when they enter the game, but my way of scripting it will not work.

This is what my script looks like:

game.Players.PlayerAdded:connect(function(plr)
    local plrName = plr.Name
    plr.CharacterAdded:connect(function(char)
        local plrTorso = char:WaitForChild("Torso")
        plrTorso:connect(function(Trail)
            local sTrail = Instance.new("ParticleEmitter")
            sTrail.Name = "TrailTest"
            sTrail.Parent = plrTorso
        end)
    end)
end)

Can anyone help my with this, it will be vary much appreciated!