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Engine-Codes – Generic – P0310

P0310 Code - Cylinder 10 Misfire Detected

Quick Answer

The P0310 diagnostic trouble code indicates that a misfire has been detected in cylinder 10 of the engine. Common causes include Faulty ignition coil or spark plug in cylinder 10, Clogged fuel injector in cylinder 10, Vacuum leak in the intake manifold near cylinder 10. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0310 indicates Cylinder 10 Misfire Detected.
Common causes
Common causes include Faulty ignition coil or spark plug in cylinder 10, Clogged fuel injector in cylinder 10, Vacuum leak in the intake manifold near cylinder 10.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Aug 18, 2024
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Code P0310 Description

The P0310 diagnostic trouble code indicates that a misfire has been detected in cylinder 10 of the engine. A misfire occurs when there is a lack of combustion in the cylinder, which can lead to a rough idle, reduced power, decreased fuel efficiency, and potentially cause damage to the catalytic converter over time. This issue can be caused by a variety of factors, including ignition system problems, fuel system issues, vacuum leaks, or mechanical problems within the engine. Ignoring this code can lead to further engine damage, reduced performance, and potential safety hazards while driving.

OBDII Code P0310 - Cylinder 10 Misfire Detected
P0310 Code - Cylinder 10 Misfire Detected

Common Causes of P0310

  1. Faulty ignition coil or spark plug in cylinder 10
  2. Clogged fuel injector in cylinder 10
  3. Vacuum leak in the intake manifold near cylinder 10
  4. Low compression in cylinder 10 due to worn piston rings or valves
  5. Electrical issues such as a faulty wiring harness or connectors related to cylinder 10

Symptoms of P0310

  1. Rough idle or shaking while the engine is running
  2. Loss of power or acceleration
  3. Increased fuel consumption
  4. Engine hesitation or stumbling
  5. Illumination of the check engine light

How to Fix P0310

  1. Use a scan tool to confirm the misfire is occurring in cylinder 10
  2. Inspect and replace the spark plug and ignition coil in cylinder 10 if faulty
  3. Clean or replace the fuel injector in cylinder 10
  4. Check for vacuum leaks near cylinder 10 and repair as necessary
  5. Perform a compression test on cylinder 10 to check for engine mechanical issues

Cost to Fix P0310

The cost of repairing a cylinder misfire in cylinder 10 can vary depending on the specific cause of the issue. On average, the cost for parts such as a spark plug, ignition coil, or fuel injector can range from $50 to $200 per component. Labor rates at auto repair shops typically range from $80 to $150 per hour, with diagnostic time also factoring into the overall cost. In total, the repair for a cylinder 10 misfire could range from $150 to $500 or more, depending on the extent of the issue and the necessary repairs. It is advisable to consult with a professional mechanic for a more accurate cost estimate based on the specific circumstances of your vehicle.

What does this mean?

Tech Notes for P0310

The P0310 code means that cylinder #10 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder #10. If the problem persists more tests need to be done to diagnose the problem. See "Possible Causes" for the most common problems.

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Code P0310 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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