AutoCodes – Lincoln – P0277 Lincoln

P0277 Lincoln Code - Cylinder 6 Injector Circuit High

Quick Answer

The Engine Control Module (ECM) supplies voltage to each Fuel Injector on the high control circuits. 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 Lincoln 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 361

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 Lincoln Description

The Engine Control Module (ECM) supplies voltage to each Fuel Injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the fuel injector control circuit is open for greater than 2 s.

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

What does this mean?

What are the Possible Causes of the DTC P0277 Lincoln?

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 Lincoln?

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

A 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 Lincoln 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 Lincoln Code

1. What does the OBDII code P0277 mean on a Lincoln?

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

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

Symptoms may include engine misfires, reduced power, rough idling, poor fuel economy, and the check engine light being illuminated.

3. What causes the P0277 code on a Lincoln?

Common causes include a faulty fuel injector, damaged or corroded wiring in the injector circuit, a bad PCM, or poor electrical connections.

4. Can I drive my Lincoln with the P0277 code?

Driving with this code is not recommended, as it can lead to further engine damage, reduced performance, and potential safety issues.

5. How do I diagnose the P0277 code on a Lincoln?

Diagnosis typically involves using a scan tool to confirm the code, inspecting the cylinder 6 injector and its wiring for damage, and testing the injectorâ€™s resistance and electrical connections.

6. How can I fix the P0277 code on my Lincoln?

Repairs may involve replacing the cylinder 6 fuel injector, repairing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.

7. How much does it cost to fix the P0277 code on a Lincoln?

Repair costs vary but can range from $150 to $400 for injector replacement or wiring repairs, with higher costs if the PCM needs replacement.

8. Can a dirty fuel injector cause the P0277 code?

A dirty injector is unlikely to trigger the P0277 code, which specifically relates to an electrical circuit issue, but it could exacerbate performance problems.

9. What tools are needed to troubleshoot the P0277 code on a Lincoln?

Common tools include an OBDII scan tool, multimeter, and possibly a noid light or injector tester to check the injector circuit.

10. Could a bad PCM cause the P0277 code on my Lincoln?

Yes, a malfunctioning PCM can occasionally cause this code, but this is less common and should be considered after ruling out injector and wiring issues.