My 04 crossfire has just recently started with this problem, it will continue to crank even when I am not touching the key, but will not fire. Then once it fires it runs fine but the check engine light comes on. 1st time it happened I thought it was the key fob so I replaced the batteries. It has done it 2 times since and usually after I have driven even a short distance and shut it off then 10 min later it wont fire, but then does in a few mins. Any IDEAS???