My check engine light came on yesterday. I took it to Auto Zone and the code P1309 came up. I have a 2002 Ford Explorer Eddie Bauer V8.. What does that code mean?

Possible causes for the code p1309 - Faulty Camshaft Position Sensor - Synchronize Assembly not properly installed. - Verify the cam sensor is synchronized - Faulty Powertrain Control Module (PCM) - Verify input sensor parameters are correct Replacing the Camshaft position sensor should do the trick. If problem persist work your way done the list. Hope this helps

Try replacing the camshaft sensor.