AutoCodes – KIA – P0277 KIA

P0277 KIA 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 KIA 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 3,480

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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

What does this mean?

What are the Possible Causes of the DTC P0277 KIA?

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 KIA?

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 KIA 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 KIA code?

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

Need Help with the Code?

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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.

Frequently Asked Questions about P0277 KIA Code

1. What does OBDII code P0277 mean on a KIA?

P0277 indicates a "Cylinder 6 Injector Circuit High," meaning the powertrain control module (PCM) has detected an abnormal voltage level in the cylinder 6 fuel injector circuit.

2. What are the common symptoms of code P0277 in a KIA?

Symptoms may include rough idling, misfiring, decreased fuel efficiency, poor engine performance, and an illuminated check engine light.

3. What causes code P0277 in a KIA vehicle?

Common causes include a malfunctioning fuel injector, damaged or corroded wiring/connectors, a faulty PCM, or an electrical short or open circuit in the injector wiring.

4. How is P0277 diagnosed on a KIA?

A mechanic will use an OBDII scanner to confirm the code, inspect the injector and its wiring for damage or corrosion, and test the fuel injector's resistance and voltage with a multimeter.

5. Can a faulty fuel injector cause P0277?

Yes, a faulty or clogged fuel injector can cause P0277 by disrupting the proper voltage or fuel delivery to cylinder 6.

6. How serious is code P0277 on a KIA?

P0277 is moderately serious. While the car may still run, prolonged driving with this issue can cause engine damage or further complications.

7. What repairs can fix code P0277 in a KIA?

Repairs may include replacing the cylinder 6 fuel injector, repairing or replacing damaged wiring/connectors, or, in rare cases, reprogramming or replacing the PCM.

8. Can I drive my KIA with code P0277?

Itâ€™s not recommended to drive for long periods with P0277, as it can lead to worsening engine performance and potential damage.

9. How much does it cost to fix code P0277 in a KIA?

The repair cost can vary but typically ranges from $150 to $500, depending on whether the issue is a simple wiring repair or a fuel injector replacement.

10. Can a dead battery trigger code P0277 in a KIA?

A dead or weak battery is unlikely to directly trigger P0277, but electrical issues caused by low voltage could contribute to injector circuit malfunctions.