Possible causes

– Synchronizer Assembly not properly installed.
– Verify the cam sensor is synchronized
– Faulty Engine Control Module (ECM)
– Verify input sensor parameters are correct

When is the code detected?

Engine Control Module (ECM) disabled the misfire monitor

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1309 Information for specific makes

P1309 MAZDA
P1309 FORD
P1309 HYUNDAI
P1309 KIA