Engine-CodesFord – P0277 2012 Ford Focus

P0277 2012 Ford Focus Code - Cylinder 6 Injector Circuit High

Quick Answer

The P0277 diagnostic trouble code is specifically related to the fuel injector circuit for cylinder 6 in your 2012 Ford Focus. Common causes include The P0277 code can be triggered by several issues, including:, Faulty or damaged fuel injector for cylinder 6, Electrical short within the fuel injector circuit. 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
P0277 2012 Ford Focus indicates Cylinder 6 Injector Circuit High.
Common causes
Common causes include The P0277 code can be triggered by several issues, including:, Faulty or damaged fuel injector for cylinder 6, Electrical short within the fuel injector circuit.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0277 2012 Ford Focus Description

The P0277 diagnostic trouble code is specifically related to the fuel injector circuit for cylinder 6 in your 2012 Ford Focus. This code indicates that the powertrain control module (PCM) has detected an unusually high voltage reading from the fuel injector circuit of cylinder 6. It is a severe type of code that directly pertains to the engine's fuel delivery system. A high voltage reading usually suggests an electrical malfunction, such as a short to power within the injector circuit.

OBDII Code P0277 2012 Ford Focus - Cylinder 6 Injector Circuit High
P0277 2012 Ford Focus Code - Cylinder 6 Injector Circuit High

Common Causes of P0277 2012 Ford Focus

The P0277 code can be triggered by several issues, including:

  1. Faulty or damaged fuel injector for cylinder 6
  2. Electrical short within the fuel injector circuit
  3. PCM malfunction
  4. Wiring issue or loose connection in the fuel injector circuit
  5. Faulty fuel pump or fuel pressure regulator

Symptoms of P0277 2012 Ford Focus

The following symptoms may be associated with the P0277 code:

  1. Engine misfire, particularly from cylinder 6
  2. Decreased fuel economy
  3. Rough or uneven engine idle
  4. The engine may have difficulty starting
  5. Check Engine Light is illuminated

How to Fix P0277 2012 Ford Focus

To resolve the P0277 code, the following steps could be undertaken:

  1. Conduct a visual inspection of the fuel injector circuit wiring and connections.
  2. Use a scanner to check the code and freeze frame data.
  3. Clear the code and test-drive the vehicle to see if the code returns.
  4. If the code returns, use a digital volt/ohmmeter to test the voltage and ground signals of the fuel injector for cylinder 6.
  5. If necessary, replace the faulty fuel injector.

Cost to Fix P0277 2012 Ford Focus

The cost to repair the P0277 code in your 2012 Ford Focus can vary widely depending on the specific issue and the labor costs in your area. Replacing a faulty fuel injector can range from $150 to $300 for parts and labor. However, if the PCM needs to be replaced, the cost could exceed $1000. Remember to check local rates and ask for quotes from different service providers to get the most accurate estimate. These figures do not include diagnosis time, which can add an additional cost. Most auto repair shops charge between $80 and $150 per hour for labor, although this may be higher in metropolitan areas or at dealerships, and less at independent shops.

Tech Notes for P0277 2012 Ford Focus

Clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.

When is the Code Detected?

The ECM has detected a fault in the fuel injection circuit

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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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