Error 1309 on ford ranger?

P1309 FORD - Misfire Detection Monitor Not enabled
Is the code it provides but I'm not sure if that s something we can fix at home or if it HAS to go to a shop. Also if anyone has an idea of pricing on fixing something like that?

Replacing the Camshaft Position Sensor (CMP) usually takes care of the problem, but if the sensor is installed out of synchronization it will produce the P1309 code. If the CMP is installed properly, REPLACE Powertrain Control Module (PCM).