AutoCodes – BMW – P0264 BMW

P0264 BMW Code - Cylinder 2 Fuel Injector Circuit Low

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 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: P0264 BMW indicates Cylinder 2 Fuel Injector Circuit Low.
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 5,201

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 P0264 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 P0264 BMW - Cylinder 2 Fuel Injector Circuit Low - AutoCodes.com — P0264 BMW Code - Cylinder 2 Fuel Injector Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0264 BMW?

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 P0264 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 P0264 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 P0264 BMW Code

1. What does the OBDII code P0264 mean on a BMW?

P0264 indicates a "Cylinder 2 Fuel Injector Circuit Low," meaning the fuel injector for cylinder 2 is receiving a lower-than-expected voltage or signal.

2. What are the symptoms of a P0264 code on a BMW?

Common symptoms include rough idling, reduced engine performance, misfires, poor fuel efficiency, and the Check Engine Light being illuminated.

3. What causes the P0264 code to trigger on a BMW?

Possible causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a malfunctioning Powertrain Control Module (PCM), or corroded electrical connections.

4. Can I drive my BMW with a P0264 code?

Driving with a P0264 code is not recommended, as it can lead to reduced performance, engine misfires, and potential damage to the catalytic converter if left unaddressed.

5. How do I diagnose the P0264 code on a BMW?

Diagnosis involves using a scan tool to confirm the code, inspecting the cylinder 2 injector wiring and connections for damage, testing the fuel injector for proper operation, and checking for voltage or continuity in the circuit.

6. How do I fix the P0264 code on a BMW?

Repairs may include replacing the faulty fuel injector, repairing or replacing damaged wiring or connectors, cleaning corroded electrical connections, or reprogramming or replacing the PCM if necessary.

7. How much does it cost to fix a P0264 code on a BMW?

Repair costs can vary but typically range from $100 to $400, depending on whether a fuel injector, wiring repair, or PCM replacement is required.

8. Can a bad fuel injector cause a P0264 code on a BMW?

Yes, a faulty or clogged fuel injector can restrict proper electrical flow, triggering the P0264 code.

9. What tools do I need to troubleshoot a P0264 code on my BMW?

You will need an OBDII scan tool, a multimeter to check voltage and continuity, and possibly a noid light to test the injector signal.

10. Could a low battery cause the P0264 code on a BMW?

A low battery or charging system issue is unlikely to directly cause P0264, but it could contribute to voltage irregularities that impact the injector circuit.