What Does the P0279 Code Mean?
The P0279 code indicates a problem with the fuel injector circuit for cylinder 7. Specifically, it signals that the engine control module (PCM) has detected a low circuit condition in the injector’s operation.
What Causes the P0279 Code?
Several factors can trigger the P0279 code, including:
- Fuel injection control module (FICM) failure
- Fuel injector failure
- Powertrain Control Module (PCM) failure
- Wiring issues related to the injector circuit
What Are the Symptoms of the P0279 Code?
Common symptoms associated with the P0279 code may include:
- Decreased engine performance
- Increased fuel consumption
- Rough idling or misfiring
How Serious Is the P0279 Code?
The P0279 code is classified as urgent. It indicates significant malfunctions that could lead to severe engine damage or safety hazards for the driver and passengers if not addressed promptly.
How to Diagnose the P0279 Code
To properly diagnose the P0279 code, a mechanic should:
- Use an OBD-II scanner to confirm the presence of the code and check for any accompanying codes.
- Inspect the wiring and connectors related to the fuel injector for any signs of damage or corrosion.
- Test the fuel injector and FICM to ensure they are functioning correctly.
- Check the PCM to determine if it is correctly controlling the injector circuits.
Common Repairs for the P0279 Code
Common repairs that may be necessary to resolve the P0279 code include:
- Replacing the fuel injector
- Repairing or replacing damaged wiring and connectors
- Replacing the fuel injection control module (FICM)
- Reprogramming or replacing the PCM if it is found to be faulty
How Much Does It Cost to Fix the P0279 Code?
The cost to repair the P0279 code can vary significantly based on the specific issue. Typical expenses may range from $100 to $1,500, depending on whether a simple wiring repair or a more complex fuel injector or PCM replacement is needed.
Can I Fix the P0279 Code Myself?
While some repairs related to the P0279 code can be done by a skilled DIYer, such as checking wiring and replacing the fuel injector, it is recommended to consult a professional mechanic. They have the tools and expertise to ensure a thorough diagnosis and repair, ultimately saving time and preventing further damage to your vehicle.
