This problem has been going on with increasing severity about a year now and it's getting to the point where j think it may just not start one day. What happens is usually after I've driven it a while I park and get back in and the car won't crank or it will crank Rpms go up then down and car shuts back off. It takes a few turns of the key till I am finally able to start the car. It does not always do this but the issue is becoming more prevalent. I changed the cps and it did nothing. And getting mixed stories from mechanics.