Possible causes
– Dirty Oil
– Engine mechanical problems
– Camshaft timing incorrectly set
– Faulty camshaft position sensor
– Faulty crankshaft position sensor
– Faulty actuator assembly
– Engine mechanical problems
– Camshaft timing incorrectly set
– Faulty camshaft position sensor
– Faulty crankshaft position sensor
– Faulty actuator assembly
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)