AutoCodes – Dodge – P0266 Dodge

P0266 Dodge Code - Cylinder 2 Contribution/Balance Fault

Quick Answer

Code P0266 is triggered when the Engine Control Module (ECM) detects that the acceleration rate of the crankshaft for Cylinder 2 was less than a calibrated amount. Common causes include Dirty Fuel Injector 2, Faulty Fuel Injector 2, Plugged Fuel Injector 2. 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: P0266 Dodge indicates Cylinder 2 Contribution/Balance Fault.
Common causes: Common causes include Dirty Fuel Injector 2, Faulty Fuel Injector 2, Plugged Fuel Injector 2.
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 505

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 P0266 Dodge Description

Code P0266 is triggered when the Engine Control Module (ECM) detects that the acceleration rate of the crankshaft for Cylinder 2 was less than a calibrated amount. During normal conditions, the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.

OBDII Code P0266 Dodge - Cylinder 2 Contribution/Balance Fault - AutoCodes.com — P0266 Dodge Code - Cylinder 2 Contribution/Balance Fault

What does this mean?

What are the Possible Causes of the DTC P0266 Dodge?

Dirty Fuel Injector 2
Faulty Fuel Injector 2
Plugged Fuel Injector 2
Fuel Injector #2 harness is open or shorted
Fuel Injector #2 circuit poor electrical connection

How to Fix the DTC P0266 Dodge?

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 P0266 Dodge 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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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 P0266 Dodge Code

1. What does the OBDII code P0266 mean on a Dodge vehicle?

P0266 indicates a "Cylinder 2 Contribution/Balance Fault," meaning the engine control module (ECM) has detected an imbalance or insufficient power contribution from cylinder 2.

2. What are common symptoms of a P0266 code on a Dodge?

Symptoms may include rough idling, reduced engine performance, misfires, poor fuel economy, and an illuminated check engine light.

3. What causes the P0266 code on a Dodge?

Common causes include a faulty fuel injector, low fuel pressure, compression issues in cylinder 2, a malfunctioning PCM, or wiring and connector problems.

4. Can a dirty fuel injector cause a P0266 code on a Dodge?

Yes, a clogged or dirty fuel injector in cylinder 2 can restrict fuel delivery and trigger the P0266 code.

5. How can I diagnose the P0266 code on a Dodge?

Diagnosis involves inspecting the fuel injector, checking for wiring or connector damage, performing a compression test, and verifying fuel pressure and PCM functionality.

6. Is it safe to drive with a P0266 code on a Dodge?

Driving with a P0266 code is not recommended, as it can lead to further engine damage, reduced performance, and increased emissions.

7. What repairs can fix the P0266 code on a Dodge?

Possible repairs include cleaning or replacing the fuel injector, repairing wiring or connectors, addressing low compression, or reprogramming/replacing the PCM.

8. How much does it cost to fix a P0266 code on a Dodge?

Repair costs vary depending on the cause, ranging from $150â€“$500 for injector cleaning or replacement, and up to $1,000 if PCM replacement is required.

9. Can low-quality fuel cause the P0266 code on a Dodge?

Yes, poor-quality or contaminated fuel can clog injectors or reduce engine performance, potentially triggering the P0266 code.

10. Will resetting the check engine light clear the P0266 code on a Dodge?

Resetting the light may temporarily clear the code, but it wonâ€™t fix the underlying issue. The code will likely return if the problem isnâ€™t resolved.