Sounds like the CPS to me. The loose wire might not have been the issue at all. Also, if you were fiddling with the wire and it was on the drivers side and towards the firewall, that's where the CPS is. It's about 45 dollars and not hard to change. If you've never had to change it before, consider yourself lucky, especially at the mileage. If you change it, make sure you get the Bosch part. Good luck.