AutoCodes – Hyundai – P0273 Hyundai

P0273 Hyundai 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 Hyundai 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 4,689

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

What does this mean?

What are the Possible Causes of the DTC P0273 Hyundai?

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 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 P0273 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 P0273 Hyundai code?

Need more information on how to fix the P0273 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0273 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 P0273 Hyundai Code

1. What are the common symptoms of OBDII code P0273 in a Hyundai related to Cylinder 5 Injector Circuit Low?

- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and potential stalling.

2. What typically causes the OBDII code P0273 to appear in a Hyundai?

- The code is usually triggered by issues such as a faulty fuel injector, wiring problems in the injector circuit, or a malfunctioning Engine Control Module (ECM).

3. How can I diagnose the cause of the Cylinder 5 Injector Circuit Low issue in my Hyundai?

- Use a scan tool to check for OBDII codes, perform a visual inspection of the injector and wiring, conduct resistance tests on the injector, and verify ECM functionality.

4. Are there any DIY repair tips for resolving the P0273 code in a Hyundai?

- DIY repair options include checking and cleaning the injector connector, repairing damaged wiring, or replacing the faulty fuel injector. However, professional diagnosis is recommended for accurate repairs.

5. Can driving with the P0273 code present in a Hyundai cause further damage?

- Continuing to drive with the code can potentially lead to engine damage, decreased performance, and increased fuel consumption. It is advisable to address the issue promptly.

6. How much does it typically cost to repair the Cylinder 5 Injector Circuit Low problem in a Hyundai?

- Repair costs can vary depending on the exact cause of the issue, but expect to pay anywhere from $150 to $500 for parts and labor at a dealership or repair shop.

7. Is it safe to reset the OBDII code P0273 in a Hyundai without fixing the underlying issue?

- Resetting the code without addressing the root cause can temporarily clear the Check Engine Light, but the problem will likely reoccur, potentially causing further issues down the line.

8. Can a DIY enthusiast replace a faulty fuel injector to resolve the P0273 code in a Hyundai?

- While replacing a fuel injector is possible for some DIYers, it requires technical knowledge and skill. If you're unsure, it's best to consult a professional mechanic for proper installation.

9. Are there any recalls or technical service bulletins related to the Cylinder 5 Injector Circuit Low problem in Hyundai vehicles?

- Check with your local Hyundai dealership or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any relevant recalls or bulletins for your specific model.

10. How can I prevent the recurrence of the OBDII code P0273 in my Hyundai after repairs?

- Regular maintenance, such as using high-quality fuel, keeping the fuel system clean, and monitoring the health of the injectors, can help prevent issues that trigger the Cylinder 5 Injector Circuit Low code.