AutoCodes – BMW – P0277 BMW

P0277 BMW Code - Cylinder 6 Fuel Injector Circuit High

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 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 BMW indicates Cylinder 6 Fuel 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 865

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

What does this mean?

What are the Possible Causes of the DTC P0277 BMW?

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 BMW?

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 BMW 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.

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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 BMW Code

1. What are common symptoms of OBDII code P0277 in a BMW related to the Cylinder 6 Fuel Injector Circuit High?

- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and potentially a check engine light.

2. What are the possible causes of the OBDII code P0277 indicating an issue with the Cylinder 6 fuel injector circuit in a BMW?

- Possible causes include a faulty fuel injector, wiring or connector issues, a clogged fuel injector, or a problem with the engine control module.

3. How can I diagnose the Cylinder 6 fuel injector circuit high issue in my BMW triggering OBDII code P0277?

- Diagnostic steps may include checking the fuel injector for resistance, inspecting the wiring and connectors for damage, and using a scan tool to monitor injector performance.

4. Can a dirty fuel injector cause the OBDII code P0277 in a BMW?

- Yes, a clogged or dirty fuel injector can disrupt the fuel delivery, leading to a high circuit condition and triggering the P0277 code.

5. What is the recommended repair for resolving the Cylinder 6 fuel injector circuit high issue in a BMW with OBDII code P0277?

- The repair typically involves replacing the faulty fuel injector, repairing any damaged wiring or connectors, and clearing the error code from the engine control module.

6. Are there any preventive maintenance tips to avoid encountering the OBDII code P0277 in a BMW?

- Regularly using high-quality fuel, performing fuel system cleanings, and following the manufacturer's recommended maintenance schedule can help prevent fuel injector issues.

7. Is it safe to drive my BMW with the OBDII code P0277 related to Cylinder 6 fuel injector circuit high?

- It is not recommended to drive the vehicle with this issue as it can lead to further engine damage, decreased performance, and potential safety hazards.

8. Can a DIY enthusiast repair the Cylinder 6 fuel injector circuit high problem causing OBDII code P0277 in a BMW?

- While some basic diagnostics and checks can be done by a DIY enthusiast, repairing or replacing the fuel injector and addressing related issues may require professional expertise.

9. How much does it typically cost to repair the Cylinder 6 fuel injector circuit high issue triggering OBDII code P0277 in a BMW?

- The cost can vary depending on the extent of the damage, parts needed, and labor rates, but it may range from a few hundred to over a thousand dollars for a professional repair.

10. Will resetting the check engine light after addressing the Cylinder 6 fuel injector circuit high problem also clear the OBDII code P0277 in a BMW?

- Yes, once the underlying issue is resolved and the check engine light is reset, the OBDII code P0277 should also be cleared from the vehicle's system.