AutoCodes – BMW – P3106 BMW

P3106 BMW Code - Cylinder 2 High-Pressure Fuel Injector Low Side Circuit High

Quick Answer

The solenoid-controlled injection valve discharges a high-pressure spray into the combustion chamber. Common causes include Faulty Fuel Injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 circuit poor electrical connection. 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: P3106 BMW indicates Cylinder 2 High-Pressure Fuel Injector Low Side Circuit High.
Common causes: Common causes include Faulty Fuel Injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 circuit poor electrical connection.
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 5,818

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 Jul 15, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P3106 BMW Description

The solenoid-controlled injection valve discharges a high-pressure spray into the combustion chamber. The solenoid-controlled injection valve is a retracting-plunger valve characterized by a high level of flexibility in its spray-propagation pattern (angle and shape). The discharge orifices form the high-precision injection pattern. This provides even and consistent propagation. The retracting-plunger solenoid-controlled injection valve continues to maintain stable propagation properties, even at the temperatures and pressure levels encountered within the combustion chamber. Fuel is injected into the combustion chambers under high pressure (between 50 and 200 bar) during the intake and compression strokes. During the warm-up phase yet another, a minute quantity of fuel is injected to assist the catalytic converter to reach its effective operating temperature more quickly (catalytic converter heating). During cold starting, the fuel is sprayed during the compression stroke in multiple pulses. This strategy provides reliable cold-starts along with substantive improvements in the areas of pollutant emissions and fuel consumption.
The Digital Motor Electronics (DME) diagnosis monitors the activation of the low voltage side of the fuel injector. The Diagnostic Trouble Code (DTC) is detected when there is a short circuit to B+.

OBDII Code P3106 BMW - Cylinder 2 High-Pressure Fuel Injector Low Side Circuit High - AutoCodes.com — P3106 BMW Code - Cylinder 2 High-Pressure Fuel Injector Low Side Circuit High

What does this mean?

What are the Possible Causes of the DTC P3106 BMW?

Faulty Fuel Injector 2
Fuel Injector 2 harness is open or shorted
Fuel Injector 2 circuit poor electrical connection
Faulty Digital Motor Electronics (DME)

How to Fix the DTC P3106 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

BMW Diagnostic Trouble Code (DTC): 110202

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P3106 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 P3106 BMW Code

1. What are common symptoms of OBDII code P3106 BMW?

- Common symptoms include rough idle, engine misfires, loss of power, poor fuel efficiency, and potentially a noticeable fuel smell.

2. What causes the OBDII code P3106 BMW to trigger?

- The code is triggered when the Engine Control Module (ECM) detects a low voltage condition in the high-pressure fuel injector circuit for cylinder 2.

3. How can I diagnose the issue related to OBDII code P3106 BMW?

- Diagnosis typically involves checking the wiring and connectors related to the high-pressure fuel injector for cylinder 2, as well as testing the injector itself for proper operation.

4. Can a faulty fuel injector cause OBDII code P3106 BMW?

- Yes, a faulty high-pressure fuel injector for cylinder 2 can cause the low side circuit high condition and trigger the P3106 code.

5. What are some repair tips for addressing OBDII code P3106 BMW?

- Repair tips include checking and repairing any damaged wiring or connectors, testing and potentially replacing the high-pressure fuel injector for cylinder 2, and clearing the code after repairs are completed.

6. Is it safe to continue driving with OBDII code P3106 BMW present?

- It is not recommended to drive with this code present, as it can lead to engine performance issues and potentially cause further damage if left unaddressed.

7. How serious is OBDII code P3106 BMW?

- While the code itself may not indicate a critical issue, it can lead to poor engine performance and fuel efficiency if not resolved in a timely manner.

8. Can I clear the OBDII code P3106 BMW without fixing the underlying issue?

- Clearing the code without addressing the underlying issue will only temporarily remove the warning light, but the problem will likely reoccur until properly repaired.

9. Does OBDII code P3106 BMW affect emissions or cause the vehicle to fail an emissions test?

- Yes, the code can potentially affect emissions if the engine is not running efficiently, and it may cause the vehicle to fail an emissions test.

10. How much does it typically cost to repair OBDII code P3106 BMW at a repair shop?

- Repair costs can vary depending on the exact cause of the issue, but typically, diagnosing and repairing a high-pressure fuel injector circuit problem can range from $200 to $600 at a repair shop.