P02F9 – Cylinder 12 Injector Circuit Range/Performance

P02F9 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light),Poor Engine Performance

P02F9 Possible Causes

Dirty Fuel Injector 12,Faulty Fuel Injector 12,Plugged Fuel Injector 12,Fuel injector 12 harness is open or shorted,Fuel injector 12 circuit poor electrical connection,Faulty Engine Control Module (ECM)

P02F9 Description

During normal conditions, the Engine Control Module (ECM) turns the Fuel Injectors ON and OFF in the Fuel Injection System. The ECM sets the OBDII code when it has detected that the Fuel Injector is not working as designed.