AutoCodes – Hyundai – P0277 Hyundai

P0277 Hyundai Code - Cylinder 6 Injector Circuit High

Quick Answer

Code P0277 is triggered when the Engine Control Module (ECM) detects a high voltage in the Fuel Injector 6 Circuit. Common causes include Dirty Fuel Injector 6, Faulty Fuel Injector 6, Plugged Fuel Injector 6. 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 Hyundai indicates Cylinder 6 Injector Circuit High.
Common causes: Common causes include Dirty Fuel Injector 6, Faulty Fuel Injector 6, Plugged Fuel Injector 6.
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.

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Code Popularity 4,722

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 02, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0277 Hyundai Description

Code P0277 is triggered when the Engine Control Module (ECM) detects a high voltage in the Fuel Injector 6 Circuit. During normal conditions, the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.

OBDII Code P0277 Hyundai - Cylinder 6 Injector Circuit High - AutoCodes.com — P0277 Hyundai Code - Cylinder 6 Injector Circuit High

What does this mean?

What are the Possible Causes of the DTC P0277 Hyundai?

Dirty Fuel Injector 6
Faulty Fuel Injector 6
Plugged Fuel Injector 6
Fuel injector 6 harness is open or shorted
Fuel injector 6 circuit poor electrical connection

How to Fix the DTC P0277 Hyundai?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0277 Hyundai code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0277 Hyundai code?

Need more information on how to fix the P0277 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0277 Hyundai code diagnosed by a professional: Find a repair shop in your area

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.

Frequently Asked Questions about P0277 Hyundai Code

1. What are the common symptoms of OBDII code P0277 (Cylinder 6 Injector Circuit High) in a Hyundai?

- Common symptoms include rough idling, misfires, poor fuel efficiency, and illuminated Check Engine light.

2. What are the possible causes of OBDII code P0277 in a Hyundai?

- The code P0277 can be caused by a faulty fuel injector, wiring issues, a clogged fuel injector, or a problem with the engine control module.

3. How can I diagnose the OBDII code P0277 in my Hyundai?

- Diagnosing the code P0277 involves using an OBDII scanner to retrieve the code, inspecting the wiring and connectors of the fuel injector, and performing a fuel injector resistance test.

4. What repairs are typically needed to fix OBDII code P0277 in a Hyundai?

- Repairing code P0277 may involve replacing the faulty fuel injector, repairing damaged wiring or connectors, cleaning a clogged fuel injector, or reprogramming the engine control module.

5. Can I drive my Hyundai with OBDII code P0277 (Cylinder 6 Injector Circuit High)?

- It is not recommended to drive your Hyundai with code P0277 as it can lead to engine damage and further issues. It's best to address the problem promptly.

6. How much does it cost to repair OBDII code P0277 in a Hyundai?

- The cost of repairing code P0277 can vary depending on the exact cause of the issue, but it may range from $150 to $500, including parts and labor.

7. What are some tips to prevent OBDII code P0277 in a Hyundai?

- To prevent code P0277, it's important to perform regular maintenance on your vehicle, use quality fuel, and address any engine performance issues promptly.

8. Can a DIY enthusiast fix OBDII code P0277 in a Hyundai?

- While some DIY enthusiasts may be able to diagnose and address simple causes of code P0277, it is recommended to consult a professional mechanic for proper diagnosis and repair.

9. Is OBDII code P0277 a serious issue in a Hyundai?

- OBDII code P0277 should be taken seriously as it can lead to engine performance issues, reduced fuel efficiency, and potential damage if left unresolved.

10. How long does it take to repair OBDII code P0277 in a Hyundai?

- The repair time for code P0277 can vary based on the exact cause and the availability of parts, but it generally takes 1 to 3 hours to diagnose and repair the issue.