Looping particlesystems

[mQe]

Hello, I'm trying to make a particlesystem loop rather than play for a bit then die. The particlesystem is looping in the editor, here is the code I've basically got :

var UTEmitter ExhaustEmitter;

function CreateExhuasts(vector loc)
{
    ExhaustEmitter=Spawn(class'UTEmitter', self,, loc);
    ExhaustEmitter.SetTemplate(ExhaustParticleSystem);
}

defaultproperties
{
    ExhaustParticleSystem=ParticleSystem'SF_Effects.Exhaust_01'
}

This spawns the particlesystem but it dies off after x amount of seconds. How to make it loop? :S

[mQe]

Anyone? :S