P0311 DTC

P0311

Technical Definition:

Cylinder 11 Misfire Detected

Trouble Code: P0311
Address: 0x0311
System: Powertrain
Subsystem:
Technical Description:

Possible Causes:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Running out of fuel
  • Poor compression
  • Defective computer

Possible Symptoms:
  • The engine may be harder to start
  • The engine may stumble / stumble, and/or hesitate
  • Other symptoms may also be present

Cylinder 11 Misfire Detected

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

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

Specific Makes:

– Lack/loss of power
– Hard start
– Engine hesitation