Understanding the 00871 DTC Code: Causes, Symptoms, and Solutions


When it comes to vehicle maintenance, staying informed about diagnostic trouble codes (DTCs) can save you time, money, and headaches. In this article, we’ll delve into the specifics of the 00871 DTC code. We’ll explore its meaning, possible causes, symptoms to look out for, and effective solutions to resolve the issue. Let’s get started!

What is the 00871 DTC Code?

The 00871 DTC code refers to a specific fault in the vehicle’s system that is related to the fuel injector group. DTC stands for Diagnostic Trouble Code, which is a unique identifier used by onboard diagnostics systems to indicate a problem that has been detected within the vehicle’s various systems. When the vehicle’s engine management system identifies an issue related to the fuel injector group, it assigns the 00871 DTC code.

Possible Causes of the 00871 DTC Code

Now that we know what the 00871 DTC code signifies, let’s explore the possible causes that trigger this fault. Understanding the potential culprits behind the code can help you diagnose and rectify the issue more effectively. Here are some common causes:

  1. Clogged or Dirty Fuel Injectors: Over time, fuel injectors can become clogged with debris, dirt, or varnish buildup. This restricts fuel flow and disrupts the proper functioning of the injector group, leading to the triggering of the 00871 DTC code.

  2. Faulty Fuel Injectors: If one or more fuel injectors are malfunctioning or not working correctly, it can cause an imbalance in the fuel delivery system. This leads to inconsistent fuel distribution, resulting in the triggering of the code.

  3. Wiring or Connection Issues: Poor electrical connections, damaged wiring harnesses, or loose connections between the fuel injectors and the vehicle’s engine control module (ECM) can cause intermittent or permanent faults leading to the appearance of the 00871 DTC code.

Common Symptoms of the 00871 DTC Code

When the 00871 DTC code is activated, certain symptoms may manifest, signaling that there is an issue within the fuel injector group. Recognizing these symptoms is crucial for prompt diagnosis and necessary repairs. Here are some common signs to watch out for:

  1. Engine Misfires or Rough Idling: If the fuel injectors are not delivering fuel properly, it can result in engine misfires, causing a noticeable decrease in engine performance. The engine may also exhibit rough idling, producing vibrations and an uneven feel.

  2. Reduced Fuel Efficiency: When the fuel injector group is compromised, the fuel-air mixture may not be optimal, leading to decreased fuel efficiency. A drop in mileage can be an indicator of this issue.

  3. Increased Emissions and Smoke: In some cases, the 00871 DTC code can cause an increase in harmful emissions, resulting in visible exhaust smoke. This can be particularly evident during acceleration or under load.

Resolving the 00871 DTC Code Issue

Once you have diagnosed the root cause of the 00871 DTC code, you can take appropriate steps to rectify the issue. Here are some effective solutions to consider:

  1. Fuel Injector Cleaning: Start by cleaning the fuel injectors using a suitable fuel injector cleaner. This can help remove any deposits or clogs that may be obstructing the smooth fuel flow. Regular cleaning can prevent future occurrences of the code.

  2. Fuel Injector Replacement: If cleaning doesn’t resolve the issue, consider replacing the faulty fuel injectors. Ensure the replacements are of high quality and compatible with your vehicle make and model.

  3. Check Wiring and Connections: Inspect the wiring and connections associated with the fuel injectors. Repair or replace any damaged wiring or loose connections to restore proper functionality.

Frequently Asked Questions (FAQs)

To provide further clarity on the 00871 DTC code, here are some frequently asked questions along with their answers:

1. Can the 00871 DTC code be Reset Without Fixing the Issue?

While it is possible to reset the DTC code without addressing the underlying problem, it is not recommended. The code will likely reappear once the vehicle’s engine management system detects the fault again. It is crucial to identify and fix the root cause to prevent potential damage and ensure optimal vehicle performance.

2. How Often Should I Clean My Fuel Injectors to Prevent the 00871 DTC Code?

The frequency of fuel injector cleaning largely depends on the vehicle’s mileage, fuel quality, and driving conditions. As a general guideline, it is advisable to clean the fuel injectors every 30,000 to 45,000 miles or as recommended by the vehicle manufacturer. Regular maintenance can help prevent fuel injector-related issues, including the 00871 DTC code.

3. Can I Diagnose the Cause of the 00871 DTC Code at Home?

While it is possible to perform basic diagnostic procedures at home using an OBD-II scanner, accurately identifying the underlying cause of the 00871 DTC code often requires specialized equipment and expertise. If you’re unsure or inexperienced, it is recommended to consult with a qualified mechanic or automotive professional to avoid misdiagnoses and unnecessary expenses.


In conclusion, the 00871 DTC code relates to a fuel injector group fault within a vehicle’s system. By understanding its causes, symptoms, and effective solutions, you can take the necessary steps to diagnose and resolve the issue. Remember, prompt action and regular maintenance can help you avoid the recurrence of the 00871 DTC code and ensure optimal vehicle performance.

About author


Meet Sam Mitchell, your experienced and reliable guide in the complex world of car fault codes. With a robust career spanning over 15 years as a professional car mechanic, John has the skills, knowledge, and practical experience to help you navigate car fault issues with confidence.


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