AutoCodes – KIA – P0273 KIA

P0273 KIA Code - Cylinder 5 Injector Circuit Low

Quick Answer

Code P0273 is triggered when the Engine Control Module (ECM) detects a low voltage in the Fuel Injector 5 Circuit. Common causes include Dirty Fuel Injector 5, Faulty Fuel Injector 5, Plugged Fuel Injector 5. 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: P0273 KIA indicates Cylinder 5 Injector Circuit Low.
Common causes: Common causes include Dirty Fuel Injector 5, Faulty Fuel Injector 5, Plugged Fuel Injector 5.
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 4,337

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 P0273 KIA Description

Code P0273 is triggered when the Engine Control Module (ECM) detects a low voltage in the Fuel Injector 5 Circuit. During normal conditions, the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.

OBDII Code P0273 KIA - Cylinder 5 Injector Circuit Low - AutoCodes.com — P0273 KIA Code - Cylinder 5 Injector Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0273 KIA?

Dirty Fuel Injector 5
Faulty Fuel Injector 5
Plugged Fuel Injector 5
Fuel injector 5 harness is open or shorted
Fuel injector 5 circuit poor electrical connection

How to Fix the DTC P0273 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 P0273 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 P0273 KIA code?

Need more information on how to fix the P0273 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 P0273 KIA Code

1. What are the common symptoms of OBDII code P0273 in a KIA, indicating a Cylinder 5 Injector Circuit Low issue?

- Common symptoms include rough idling, reduced engine performance, misfires, and potential engine stalling.

2. What are the possible causes of OBDII code P0273 in a KIA, signaling a Cylinder 5 Injector Circuit Low problem?

- Potential causes include a faulty fuel injector in cylinder 5, wiring issues in the injector circuit, poor electrical connections, or an Engine Control Module (ECM) malfunction.

3. How can I diagnose the OBDII code P0273 in my KIA related to Cylinder 5 Injector Circuit Low?

- Diagnostic steps may involve checking the injector wiring for continuity, testing the injector resistance, inspecting for loose connections, and scanning the ECM for specific fault codes.

4. Can a clogged fuel injector cause OBDII code P0273 in a KIA, leading to Cylinder 5 Injector Circuit Low issues?

- Yes, a clogged or dirty fuel injector in cylinder 5 can disrupt fuel delivery, leading to a low injector circuit condition and triggering code P0273.

5. What are some repair tips for resolving OBDII code P0273 in a KIA associated with Cylinder 5 Injector Circuit Low?

- Repair tips include cleaning or replacing the faulty fuel injector, repairing any damaged wiring, ensuring proper electrical connections, and resetting the ECM after repairs.

6. Is it safe to continue driving my KIA with OBDII code P0273 due to Cylinder 5 Injector Circuit Low?

- It is not recommended to drive the vehicle with code P0273 present, as it can lead to further engine damage and potentially unsafe driving conditions.

7. Can a DIY enthusiast fix OBDII code P0273 in a KIA related to Cylinder 5 Injector Circuit Low?

- While some simple tasks like checking connections can be done by a DIY enthusiast, diagnosing and repairing the root cause of the issue may require professional mechanic expertise.

8. Will resetting the OBDII system clear code P0273 in a KIA indicating Cylinder 5 Injector Circuit Low?

- Resetting the system may temporarily clear the code, but if the underlying issue like a faulty injector or wiring problem persists, the code is likely to reappear.

9. How much should I expect to pay for professional repairs of OBDII code P0273 in a KIA linked to Cylinder 5 Injector Circuit Low?

- The cost of repairs can vary based on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Can extreme weather conditions impact OBDII code P0273 in a KIA with Cylinder 5 Injector Circuit Low problems?

- Extreme cold or hot weather can sometimes exacerbate existing issues with fuel injectors or electrical components, potentially leading to the triggering of code P0273.