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
Engine Light ON (or Service Engine Soon Warning Light)
Engine Run Rough
Code P0296 is triggered when the Engine Control Module (ECM) detects that the acceleration rate of the crankshaft for Cylinder 12 was less than a calibrated amount. During normal conditions the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.