AutoCodes – BMW – P310E BMW

P310E BMW Code - Cylinder 2 High Pressure Fuel Injector Low Side/High Side Electrical

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: P310E BMW indicates Cylinder 2 High Pressure Fuel Injector Low Side/High Side Electrical.
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 4,660

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 16, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P310E 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 high voltage side of the fuel injector. The Diagnostic Trouble Code (DTC) is detected when there is a short circuit between the high-voltage side and the low-voltage side.

OBDII Code P310E BMW - Cylinder 2 High Pressure Fuel Injector Low Side/High Side Electrical - AutoCodes.com — P310E BMW Code - Cylinder 2 High Pressure Fuel Injector Low Side/High Side Electrical

What does this mean?

What are the Possible Causes of the DTC P310E 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 P310E 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): 112204

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P310E 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 P310E BMW Code

1. What are common symptoms of OBDII code P310E in a BMW indicating an issue with Cylinder 2 High Pressure Fuel Injector?

- Common symptoms may include rough idling, engine misfires, reduced engine performance, and potential fuel efficiency issues.

2. What are the possible causes of OBDII code P310E in a BMW related to Cylinder 2 High Pressure Fuel Injector?

- The code may be triggered by issues such as a faulty high-pressure fuel injector, wiring problems, poor electrical connections, or a malfunctioning injector driver module.

3. How can I diagnose the cause of OBDII code P310E in my BMW?

- Diagnosing the issue may involve using a scan tool to retrieve the code, checking the wiring and connections to the fuel injector, conducting a fuel pressure test, and performing a visual inspection of the injector components.

4. Can I drive my BMW with OBDII code P310E present?

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

5. How can I repair OBDII code P310E in my BMW related to Cylinder 2 High Pressure Fuel Injector?

- Repair options may include replacing the faulty fuel injector, repairing or replacing damaged wiring or connectors, checking and resetting the injector driver module, and clearing the error code.

6. Are there any DIY tips for addressing OBDII code P310E in a BMW?

- DIY enthusiasts with automotive experience may attempt to inspect and clean connectors, check wiring for damage, and replace the fuel injector following proper guidelines and precautions.

7. How important is it to fix OBDII code P310E in a BMW promptly?

- It is crucial to address this code promptly to prevent potential engine damage, poor performance, decreased fuel efficiency, and possible safety risks while driving.

8. Can weather conditions affect the triggering of OBDII code P310E in a BMW?

- Extreme weather conditions, such as extreme heat or cold, can potentially exacerbate issues related to the Cylinder 2 High Pressure Fuel Injector, leading to the triggering of this code.

9. Will resetting the error code fix OBDII code P310E in a BMW?

- While clearing the error code may temporarily turn off the check engine light, it will not fix the underlying issue causing the code to appear. It's essential to diagnose and repair the root cause.

10. How can regular maintenance help prevent OBDII code P310E in a BMW?

- Regular maintenance, such as fuel injector cleaning, checking electrical connections, and addressing any engine performance issues promptly, can help prevent OBDII code P310E from occurring in your BMW.