Car has 186k miles and still runs strong...when running! Unfortunately, the car sat for 3 days without being driven. Once I tried to start after this period, it started, but not without some effort. Now, the car does not start at all. I checked the battery, starter (new brushes done), fuel pump is working, alternator is good and just changed the Camshaft Position Sensor (CPS). To no avail, it will not turnover. Any thoughts out there? Please!