Code P0311 Possible Causes
Incorrect fuel pressure
Insufficient cylinder 11 compression
Intake air leak
Clogged or faulty fuel injector 12
Faulty ignition coil 12
Faulty spark plug 12
Fuel injector 12 circuit poor electrical connection
Fuel injector 12 harness is open or shorted
Ignition coil 12 circuit poor electrical connection
Ignition coil 12 harness is open or shorted

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