Lowell took tge spark driver out the l6 ecu and its still the same sonetines its firing up and sonetines it wont have it now plug another ecu in it runs anyone have Any ideas its not starting at All when it gets warm it just cuts out its on a frst cossie managemnt

 

I'd be looking at your cps and its gap and bracket that its mounted on is not moving and causing your issues with wasted spark and without it.

If what you are using as a phase sensor and crank is not set correctly all manner of problems can occur.