did yours fully die on side of the road and maybe start and maybe not ? as mine can be ticking over fine then out the blue will just die like you have taken power away from coil, It dont misfire or anything like that just cuts out and pop's and bangs due to the spark coming back and the unburnt fuel also some times when the car gets switched of about 5sec's later you will get a bang out the exhaust (unburnt fuel?)