AutoCodes – MINI – P0204 MINI

P0204 MINI Code - Cylinder 4 Fuel Injector Circuit Open

Quick Answer

The solenoid-controlled injection valve discharges a high-pressure spray into the combustion chamber. Common causes include Faulty Fuel Injector 4, Fuel Injector 4 harness is open or shorted, Fuel Injector 4 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: P0204 MINI indicates Cylinder 4 Fuel Injector Circuit Open.
Common causes: Common causes include Faulty Fuel Injector 4, Fuel Injector 4 harness is open or shorted, Fuel Injector 4 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 2,898

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 P0204 MINI 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 line disconnection (break).

OBDII Code P0204 MINI - Cylinder 4 Fuel Injector Circuit Open - AutoCodes.com — P0204 MINI Code - Cylinder 4 Fuel Injector Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0204 MINI?

Faulty Fuel Injector 4
Fuel Injector 4 harness is open or shorted
Fuel Injector 4 circuit poor electrical connection
Faulty Digital Motor Electronics (DME)

How to Fix the DTC P0204 MINI?

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): 112401

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0204 MINI 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 P0204 MINI Code

1. What are the common symptoms of OBDII code P0204 (Cylinder 4 Fuel Injector Circuit Open) in a MINI?

- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and potential stalling while driving.

2. What are the possible causes of OBDII code P0204 in a MINI?

- The code P0204 can be caused by a faulty fuel injector, damaged wiring or connectors in the injector circuit, or issues with the engine control module (ECM).

3. How can I diagnose the cause of OBDII code P0204 in my MINI?

- Use a diagnostic scanner to retrieve the code, then inspect the wiring and connectors related to Cylinder 4 fuel injector. You may also perform a resistance test on the injector itself.

4. Can a dirty fuel injector cause OBDII code P0204 in a MINI?

- While a dirty fuel injector can contribute to performance issues, OBDII code P0204 typically indicates an open circuit or electrical problem with the fuel injector.

5. How can I repair OBDII code P0204 in my MINI?

- Repair options include replacing the faulty fuel injector, repairing damaged wiring or connectors, and resetting the ECM after the issue has been addressed.

6. Is it safe to continue driving with OBDII code P0204 present in my MINI?

- It is not recommended to drive with OBDII code P0204 active, as it can lead to engine performance issues and potential damage if left unresolved.

7. Can a DIY enthusiast fix OBDII code P0204 in a MINI?

- Depending on the root cause, DIY enthusiasts may be able to address OBDII code P0204 by replacing a faulty fuel injector or repairing wiring issues. However, professional diagnosis and repair may be required for more complex issues.

8. How much does it cost to repair OBDII code P0204 in a MINI?

- The cost of repairing OBDII code P0204 can vary depending on the cause and the extent of the issue. Costs may include parts, labor, and diagnostic fees.

9. Will resetting the OBDII code P0204 clear the issue in my MINI?

- Resetting the code may temporarily clear the check engine light, but it will not address the underlying problem causing OBDII code P0204. It is important to diagnose and repair the root cause to prevent future issues.

10. How can I prevent OBDII code P0204 from occurring in my MINI?

- Regular maintenance, including fuel system cleaning and inspection of wiring harnesses, can help prevent issues leading to OBDII code P0204.