Ok heres the deal. My car starts fine in the mornings, and after i let it sit for like 3 hours. But if i go to the store or something like that, and get back into it it wont start, it cranks, and wants to start but it just wont. This is ONLY after it is driven. The battery cables and everything are fine. Its really weird. I was thinking maybe crank position sensor is going bad, im not throwing any codes for anything so has anyone had this problem? I dont want to buy parts that i dont need. Also, to check the crank position sensor it would be a resistance test correct? What is the specification? Thanks guys!