P0311 - OBD II Trouble Code

Our automotive experts have put together the following information about the P0311 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0311 code.

What Does P0311 Code Mean?

OBD-II Code P0311 is defined as a Cylinder 11 Misfire Detected

When the engine control module (PCM) detects that cylinder 11 is not sufficiently contributing to keeping the engine running properly, it will set code P0311.

P0311 Symptoms

• Decreased engine performance
• Increased fuel consumption

Common Problems That Trigger the P0311 Code

• Damaged or contaminated spark plug
• Engine sensor failure
• Exhaust leak
• Fuel injector failure
• Fuel pump failure
• Ignition coil failure
• Internal engine failure
• Powertrain Control Module (PCM) software needs to be updated
• The fuel does not meet the manufacturer's requirements
• Vacuum leak

Common Repairs Needed for the P0311 Code

• Fuel Injector Replacement
• Ignition Coil Replacement