Engine-CodesNissan – P0204 Nissan

P0204 Nissan Code - Number 4 Fuel Injector Circuit Open

Quick Answer

The P0204 diagnostic trouble code (DTC) for Nissan vehicles indicates that there is an open circuit in the fuel injector of cylinder number 4. Common causes include Faulty fuel injector, Wiring issues, Poor 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 Nissan indicates Number 4 Fuel Injector Circuit Open.
Common causes
Common causes include Faulty fuel injector, Wiring issues, Poor 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.
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P0204 Nissan Description

The P0204 diagnostic trouble code (DTC) for Nissan vehicles indicates that there is an open circuit in the fuel injector of cylinder number 4. This means that the fuel injector in cylinder 4 is not sending the proper amount of fuel to the combustion chamber, leading to a potential misfire or imbalance in the engine's operation. The fuel injector is responsible for delivering the precise amount of fuel to the combustion chamber at the right time, and when the circuit is open, it disrupts this process.

OBDII Code P0204 Nissan - Number 4 Fuel Injector Circuit Open
P0204 Nissan Code - Number 4 Fuel Injector Circuit Open

Common Causes of P0204 Nissan

  1. Faulty fuel injector
  2. Wiring issues
  3. Poor connection
  4. ECM malfunction
  5. Corrosion or damage to the injector connector

Symptoms of P0204 Nissan

  1. Rough idling
  2. Hesitation or stumbling during acceleration
  3. Decreased fuel efficiency
  4. Engine misfires
  5. Check Engine Light illuminated

How to Fix P0204 Nissan

  1. Begin by diagnosing the specific cause of the open circuit in the fuel injector, using a multimeter to test for continuity and voltage at the injector and its connector.
  2. If the issue is with the injector itself, it will need to be replaced with a new one.
  3. Check the wiring and connectors for any signs of damage or corrosion, repairing or replacing them as needed.
  4. Clear the DTC from the ECM's memory using a diagnostic scanner.
  5. Test the vehicle to ensure that the repair has resolved the issue and that the fuel injector is now functioning correctly.

Cost to Fix P0204 Nissan

The cost of repairing a P0204 code for a Nissan vehicle can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the cost of replacing a fuel injector can range from $150 to $300 per injector, with additional costs for labor. Overall, the total repair cost for addressing this code could range from $200 to $500, including diagnosis time and labor. Keep in mind that these costs are estimates and may vary based on location and other factors. It is recommended to obtain quotes from local auto repair shops for a more accurate estimate.

When is the Code Detected?

The P0204 is set if the Engine Control Module (ECM) is detects a low or high voltage drop or resistance at the injector 4.

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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.

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