was driving home the other night and my cel came on. got home to pull the code and no light. replaced cap, rotor and plugs in the morning and the car was running like a champ. last night same thing just driving along and car starts to "hiccup" with cel on, like it had no tune. get 2 streets away from home and just like magic, car is running fine. this can't just be some freak thing that happens at night when the temps go down? any help would be greatly appriciated.

 

pull over and check the CEL when it comes on

 

ground?

 

ignitor