There does not appear to be a spark at the plugs, but not always. She will start or she wont. I thought it was a cold start prob' changed the coolant sensor, changed plugs, she has had a new dissy 8 months ago, this is the second one in 2 years. The other thing is that she did have an alarm/imobiliser but this had been removed before I brought her. Help any thoughts.

 

did you check the ignition module? that would have been my first guess with intermitant spark.