AutoCodes – MINI – P0273 MINI

P0273 MINI Code - Cylinder 5 Fuel Injector Circuit Low

Quick Answer

This fault code is stored in the Engine Control Module (ECM) when the injector control circuit does not behave as expected. 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 MINI indicates Cylinder 5 Fuel 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 1,987

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 MINI Description

This fault code is stored in the Engine Control Module (ECM) when the injector control circuit does not behave as expected. The ECM uses the induced voltage from the injector to indicate that the fuel injector circuit is operating correctly electrically. It does not signal the mechanical condition of the injector. When the ECM opens the ground circuit for an injector, to cease current flow, a voltage is induced into the winding. This voltage shows the electrical integrity of the injector and associated wiring. Absence of this induced voltage results in a fault code being stored in the ECM.

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

What does this mean?

What are the Possible Causes of the DTC P0273 MINI?

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 MINI?

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 MINI 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 MINI code?

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

Need Help with the Code?

Get the P0273 MINI 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 MINI Code

1. What are the common symptoms of OBDII code P0273 in a MINI Cooper?

- Common symptoms include rough idling, engine misfires, loss of power, and decreased fuel efficiency.

2. What can cause the Cylinder 5 Fuel Injector Circuit Low error code in a MINI Cooper?

- Possible causes include a faulty fuel injector, wiring issues, poor electrical connections, or a problem with the Engine Control Module (ECM).

3. How can I diagnose the Cylinder 5 Fuel Injector Circuit Low issue in my MINI Cooper?

- Diagnosing this issue typically involves checking the fuel injector for proper operation, inspecting the wiring harness for damage, and testing the ECM for faults using a diagnostic scanner.

4. Can a dirty fuel injector cause the P0273 error code in a MINI Cooper?

- Yes, a dirty or clogged fuel injector can lead to a low fuel injector circuit code like P0273. Regular maintenance, including using fuel injector cleaner, can help prevent this issue.

5. Is it safe to drive my MINI Cooper with the P0273 fault code?

- It is not recommended to drive your vehicle with this fault code as it can lead to further engine damage and potential safety hazards. It's best to address the issue promptly.

6. How can I repair the Cylinder 5 Fuel Injector Circuit Low problem in my MINI Cooper?

- Repair options may include replacing the faulty fuel injector, repairing any damaged wiring, ensuring proper electrical connections, or reprogramming the ECM if needed.

7. Can I reset the OBDII code P0273 in my MINI Cooper without fixing the underlying issue?

- While you can clear the fault code using an OBDII scanner, it is crucial to address the root cause of the problem to prevent the code from reoccurring.

8. Will a fuel system cleaning help resolve the P0273 error code in my MINI Cooper?

- A fuel system cleaning may help if the issue is related to a dirty fuel injector. However, if the problem lies with a faulty injector or wiring, a cleaning may not be sufficient.

9. How much does it typically cost to repair the Cylinder 5 Fuel Injector Circuit Low fault in a MINI Cooper?

- The cost of repair can vary depending on the extent of the issue and the specific components that need to be replaced. It's recommended to consult a mechanic for an accurate estimate.

10. Can a DIY enthusiast fix the P0273 code in a MINI Cooper, or is it best left to professionals?

- While some basic diagnostics and repairs can be done by DIY enthusiasts, diagnosing and fixing complex issues like the Cylinder 5 Fuel Injector Circuit Low code may be best handled by experienced professionals to ensure proper resolution.