Check Engine App: Your Ultimate Guide to Car Diagnostics

Check Engine App is your go-to solution for understanding your vehicle’s health in real-time, offering OBD fault codes, car performance metrics, sensor data, and much more. At CAR-TOOL.EDU.VN, we understand the importance of keeping your vehicle running smoothly and efficiently. Discover how a check engine app can revolutionize your car maintenance routine and save you money on costly repairs.

Table of Contents

1. What is a Check Engine App?
2. Why Use a Check Engine App?
3. Key Features of a Check Engine App
4. How to Choose the Right Check Engine App
5. Top Check Engine Apps on the Market
6. Understanding OBD-II and ELM327 Adapters
7. Troubleshooting Common Check Engine Light Issues
8. Advanced Diagnostics with Check Engine Apps
9. Benefits for Professional Mechanics
10. Real-World Applications of Check Engine Apps
11. The Future of Car Diagnostics
12. FAQ About Check Engine Apps

1. What is a Check Engine App?

A check engine app is a software application designed to interface with your car’s onboard diagnostic (OBD) system. According to the Environmental Protection Agency (EPA), all cars and light trucks manufactured since 1996 are equipped with OBD-II systems to monitor vehicle performance. These apps, when paired with an OBD-II adapter, can read diagnostic trouble codes (DTCs), monitor sensor data, and provide insights into your car’s overall health, enabling users to perform preemptive maintenance and address issues before they escalate.

1.1. Defining a Check Engine App

A check engine app, also known as an OBD-II app or car diagnostic app, is a mobile or desktop application that connects to your car’s computer system to read and interpret data. It transforms your smartphone or tablet into a powerful diagnostic tool, providing real-time information about your vehicle’s performance. The Society of Automotive Engineers (SAE) standardized OBD-II protocols, ensuring compatibility across different vehicle makes and models.

1.2. How it Works

The app communicates with your car via an OBD-II adapter, which plugs into the OBD-II port usually found under the dashboard. This adapter uses Bluetooth or Wi-Fi to transmit data to the app on your device. The app then decodes this data, presenting it in an easy-to-understand format. Common data points include engine temperature, RPM, vehicle speed, and diagnostic trouble codes (DTCs).

1.3. Components Needed

To use a check engine app effectively, you need two primary components:

• Check Engine App: The software installed on your smartphone, tablet, or computer.
• OBD-II Adapter: A hardware device that plugs into your car’s OBD-II port and communicates with the app via Bluetooth or Wi-Fi.

1.4. Compatibility with Vehicles

Most check engine apps are compatible with vehicles manufactured after 1996, as these cars are equipped with OBD-II systems. However, compatibility can vary based on the app and adapter you choose. Some apps offer advanced features for specific car brands like Toyota, GM, BMW, and Ford. Always verify that the app and adapter are compatible with your car’s make and model before purchasing.

1.5. Benefits of Using a Check Engine App

Using a check engine app offers numerous benefits, including:

• Real-Time Monitoring: Monitor your car’s performance in real-time, including engine temperature, RPM, and vehicle speed.
• Diagnostic Trouble Codes (DTCs): Read and clear DTCs to understand and address issues.
• Preventative Maintenance: Identify potential problems before they become major repairs.
• Cost Savings: Reduce repair costs by addressing issues early and avoiding unnecessary trips to the mechanic.
• Emission Readiness: Check if your car is ready for emission tests.
• Performance Analysis: Measure acceleration, fuel consumption, and other performance metrics.

2. Why Use a Check Engine App?

Using a check engine app provides numerous advantages for both car owners and professional mechanics. According to a study by AAA, American motorists spend an average of $792 per year on vehicle maintenance and repair. A check engine app can help reduce these costs by enabling proactive maintenance and early detection of potential issues.

2.1. Identifying Problems Early

One of the primary reasons to use a check engine app is to identify potential problems early. The app provides real-time data from your car’s sensors, allowing you to spot anomalies and address them before they lead to costly repairs. For example, if your engine temperature is consistently higher than usual, the app can alert you to a potential cooling system issue.

2.2. Understanding Diagnostic Trouble Codes (DTCs)

When your check engine light comes on, it indicates that your car’s computer has detected a problem. A check engine app can read the Diagnostic Trouble Code (DTC) associated with the issue and provide a description of what the code means. This information can help you understand the problem and decide on the best course of action.

2.3. Monitoring Vehicle Performance

Check engine apps allow you to monitor various aspects of your vehicle’s performance, such as fuel efficiency, engine load, and sensor data. By tracking these metrics over time, you can identify trends and potential issues. For instance, a sudden drop in fuel efficiency could indicate a problem with your engine or fuel system.

2.4. Saving Money on Repairs

By identifying problems early and understanding DTCs, you can save money on repairs. You can often fix minor issues yourself or provide your mechanic with specific information, reducing diagnostic costs and ensuring that the right repairs are performed.

2.5. Emission Readiness Checks

Many check engine apps include a feature that checks your car’s readiness for emission tests. This feature verifies that all necessary systems have been tested and are functioning correctly, ensuring that your car will pass the test. This is especially useful in states with strict emission standards.

2.6. Benefits for DIY Enthusiasts

For DIY car enthusiasts, a check engine app is an invaluable tool. It provides the information needed to perform your own diagnostics and repairs, saving you money on labor costs. With access to DTCs, sensor data, and repair guides, you can tackle a wide range of automotive issues yourself.

2.7. Advantages for Professional Mechanics

Professional mechanics also benefit from check engine apps. These apps can supplement traditional diagnostic tools, providing additional data and insights. They can also be used for quick checks and preliminary diagnostics, saving time and improving efficiency.

3. Key Features of a Check Engine App

A check engine app comes with a range of features designed to help you understand and maintain your vehicle. According to a report by Grand View Research, the global automotive diagnostics market is expected to reach $46.9 billion by 2027, driven by the increasing adoption of advanced diagnostic tools like check engine apps.

3.1. Reading Diagnostic Trouble Codes (DTCs)

The ability to read DTCs is a fundamental feature of any check engine app. When your check engine light comes on, the app can retrieve the code and provide a description of the problem. This allows you to understand the issue and take appropriate action.

3.2. Clearing Diagnostic Trouble Codes (DTCs)

In addition to reading DTCs, most check engine apps allow you to clear them. Clearing a DTC turns off the check engine light, but it’s important to address the underlying issue first. If the problem persists, the light will come back on.

3.3. Real-Time Sensor Data

Check engine apps provide real-time data from your car’s sensors, including:

• Engine Temperature: Monitors the temperature of your engine to prevent overheating.
• RPM: Displays the engine speed in revolutions per minute.
• Vehicle Speed: Shows your current speed.
• Fuel Consumption: Tracks your fuel usage to help you improve efficiency.
• Oxygen Sensor Readings: Monitors the performance of your oxygen sensors.
• Mass Air Flow (MAF): Measures the amount of air entering the engine.

3.4. Freeze Frame Data

Freeze frame data captures the sensor readings at the moment a DTC was recorded. This information can be helpful in diagnosing intermittent problems, as it provides a snapshot of the conditions that triggered the code.

3.5. Emission Readiness Tests

Many check engine apps include emission readiness tests, which verify that your car’s systems are ready for an emission test. These tests check the status of various components, such as the catalytic converter, oxygen sensors, and evaporative emission control system.

3.6. Custom Dashboards

Some apps allow you to create custom dashboards with the gauges and data points that are most important to you. This feature enables you to monitor specific aspects of your car’s performance in real-time.

3.7. Data Logging

Data logging allows you to record sensor data over time. This feature is useful for diagnosing intermittent problems and tracking your car’s performance under different conditions. You can then analyze the data to identify trends and potential issues.

3.8. Trip Recording

Trip recording automatically logs your trips, including distance, fuel consumption, and average speed. This feature can be used to track your driving habits and identify ways to improve fuel efficiency.

3.9. Head-Up Display (HUD) Mode

Some check engine apps offer a HUD mode, which projects data onto your windshield. This allows you to monitor your car’s performance without taking your eyes off the road.

3.10. Support for Extended PID’s

Extended PID’s (Parameter Identification) provide access to additional sensor data that is not available through standard OBD-II protocols. This feature is particularly useful for diagnosing issues with specific car makes and models.

3.11. Vehicle Health Reports

Some check engine apps generate vehicle health reports, which summarize your car’s performance and identify potential issues. These reports can be helpful for tracking maintenance needs and planning repairs.

4. How to Choose the Right Check Engine App

Choosing the right check engine app depends on your specific needs and the features you require. According to a survey by Statista, the most popular categories of mobile apps are tools and utilities, making check engine apps a valuable addition to your digital toolkit.

4.1. Compatibility with Your Vehicle

The first step in choosing a check engine app is to ensure that it is compatible with your vehicle. Check the app’s documentation or website to verify that it supports your car’s make, model, and year.

4.2. Features Offered

Consider the features offered by different apps and choose one that meets your needs. If you are a DIY enthusiast, you may want an app with advanced features like data logging and support for extended PID’s. If you simply want to read and clear DTCs, a basic app may suffice.

4.3. User Interface and Ease of Use

The user interface of a check engine app should be intuitive and easy to use. Look for an app with clear displays, simple navigation, and helpful documentation.

4.4. Customer Reviews and Ratings

Check customer reviews and ratings before purchasing a check engine app. This can provide valuable insights into the app’s performance, reliability, and customer support.

4.5. Cost and Subscription Models

Check engine apps are available in various pricing models, including free apps with limited features, one-time purchases, and subscription-based services. Consider your budget and choose an app that offers the features you need at a price you are comfortable with.

4.6. Support for OBD-II Adapters

Ensure that the check engine app supports a wide range of OBD-II adapters. This will give you more flexibility in choosing an adapter that meets your needs and budget.

4.7. Data Security and Privacy

When choosing a check engine app, consider data security and privacy. Look for apps that encrypt your data and protect your personal information. Read the app’s privacy policy to understand how your data is collected and used.

4.8. Updates and Support

Choose an app that is regularly updated and offers good customer support. Regular updates ensure that the app remains compatible with the latest vehicles and operating systems, while good customer support can help you troubleshoot any issues you may encounter.

5. Top Check Engine Apps on the Market

Several check engine apps are available on the market, each with its unique features and benefits. Based on user reviews and expert opinions, here are some of the top check engine apps:

5.1. Car Scanner ELM OBD2

Car Scanner ELM OBD2 offers a wide range of features, including reading and clearing DTCs, real-time sensor data, custom dashboards, and support for extended PID’s. It is compatible with a wide range of vehicles and OBD-II adapters. Car Scanner ELM OBD2 is free but to unlock all the features, a one-time purchase or a subscription is required.

5.2. Torque Pro

Torque Pro is a popular check engine app known for its advanced features and customization options. It offers real-time sensor data, custom dashboards, data logging, and support for extended PID’s. Torque Pro is a paid app, but it is well worth the investment for serious car enthusiasts.

5.3. OBD Fusion

OBD Fusion is a versatile check engine app that offers a wide range of features, including reading and clearing DTCs, real-time sensor data, custom dashboards, and emission readiness tests. It is compatible with a wide range of vehicles and OBD-II adapters.

5.4. BimmerCode

BimmerCode is a specialized check engine app designed for BMW and Mini vehicles. It allows you to code various settings on your car, such as disabling the auto start-stop function, customizing the lighting, and unlocking hidden features.

5.5. Dr. Prius/Dr. Hybrid

Dr. Prius/Dr. Hybrid is a specialized check engine app designed for Toyota and Lexus hybrid vehicles. It provides detailed information about your hybrid battery’s health and performance, allowing you to identify potential issues early and extend the life of your battery.

5.6. FORScan

FORScan is a powerful check engine app designed for Ford, Lincoln, and Mercury vehicles. It offers advanced diagnostic capabilities, including reading and clearing DTCs, running diagnostic tests, and programming modules.

5.7. DashCommand

DashCommand is a check engine app that offers a range of features, including reading and clearing DTCs, real-time sensor data, custom dashboards, and performance testing. It is compatible with a wide range of vehicles and OBD-II adapters.

6. Understanding OBD-II and ELM327 Adapters

OBD-II (On-Board Diagnostics II) is a standardized system used in most cars and light trucks manufactured since 1996 to monitor engine performance and emissions. The ELM327 is a microcontroller that interprets the OBD-II protocol, allowing devices like check engine apps to communicate with your car’s computer.

6.1. What is OBD-II?

OBD-II is a standardized system that provides access to data from your car’s engine control unit (ECU). It monitors various parameters, such as engine temperature, RPM, and sensor data, and stores diagnostic trouble codes (DTCs) when it detects a problem.

6.2. What is an ELM327 Adapter?

An ELM327 adapter is a hardware device that plugs into your car’s OBD-II port and communicates with your smartphone, tablet, or computer via Bluetooth or Wi-Fi. It interprets the OBD-II protocol and transmits data to the check engine app, allowing you to read DTCs, monitor sensor data, and perform other diagnostic functions.

6.3. Types of OBD-II Adapters

There are several types of OBD-II adapters available, including:

• Bluetooth Adapters: These adapters connect to your smartphone or tablet via Bluetooth. They are generally more convenient than Wi-Fi adapters, as they do not require a Wi-Fi network.
• Wi-Fi Adapters: These adapters connect to your smartphone, tablet, or computer via Wi-Fi. They are compatible with both iOS and Android devices.
• USB Adapters: These adapters connect to your computer via USB. They are typically used for advanced diagnostics and programming.

6.4. Choosing the Right OBD-II Adapter

When choosing an OBD-II adapter, consider the following factors:

• Compatibility: Ensure that the adapter is compatible with your vehicle and check engine app.
• Connectivity: Choose an adapter with the connectivity option that best suits your needs (Bluetooth, Wi-Fi, or USB).
• Features: Consider the features offered by different adapters, such as support for extended PID’s and advanced diagnostic functions.
• Price: OBD-II adapters range in price from around $20 to over $100. Choose an adapter that offers the features you need at a price you are comfortable with.
• Reviews: Read customer reviews before purchasing an OBD-II adapter to ensure that it is reliable and performs as expected.

6.5. Recommended OBD-II Adapter Brands

Some of the recommended OBD-II adapter brands include:

• Kiwi 3
• Viecar
• V-Gate
• Carista
• LELink
• Veepeak

6.6. Avoiding Cheap Chinese Clones

Be wary of cheap Chinese clones of ELM327 adapters, as they may not be reliable and can even damage your car’s ECU. These adapters are often marked as v.2.1 and have lot’s of bugs. It is best to stick with reputable brands and vendors.

7. Troubleshooting Common Check Engine Light Issues

The check engine light can come on for a variety of reasons, ranging from minor issues to serious problems. A check engine app can help you diagnose the cause of the light and take appropriate action.

7.1. Loose Gas Cap

A loose or missing gas cap is one of the most common reasons for the check engine light to come on. The gas cap prevents fuel vapors from escaping, and if it is not properly sealed, it can trigger a DTC.

7.2. Faulty Oxygen Sensor

The oxygen sensors measure the amount of oxygen in the exhaust gas and help the ECU adjust the air-fuel mixture. A faulty oxygen sensor can cause the check engine light to come on and can also affect your car’s fuel efficiency.

7.3. Catalytic Converter Failure

The catalytic converter reduces harmful emissions from your car’s exhaust. A failing catalytic converter can cause the check engine light to come on and can also lead to poor engine performance.

7.4. Mass Air Flow (MAF) Sensor Issues

The MAF sensor measures the amount of air entering the engine. A dirty or faulty MAF sensor can cause the check engine light to come on and can also affect your car’s fuel efficiency and performance.

7.5. Spark Plug or Ignition Coil Problems

Worn or damaged spark plugs or ignition coils can cause the check engine light to come on and can also lead to poor engine performance and misfires.

7.6. Vacuum Leaks

Vacuum leaks can cause the check engine light to come on and can also affect your car’s fuel efficiency and performance.

7.7. Evaporative Emission Control System (EVAP) Issues

The EVAP system prevents fuel vapors from escaping into the atmosphere. Issues with the EVAP system can cause the check engine light to come on.

7.8. Using a Check Engine App for Diagnosis

To diagnose a check engine light issue, follow these steps:

1. Connect your OBD-II adapter to your car’s OBD-II port.
2. Turn on your car’s ignition.
3. Launch your check engine app and connect to the OBD-II adapter.
4. Read the DTCs and note the code descriptions.
5. Research the DTCs to understand the potential causes and solutions.
6. Inspect the affected components and perform any necessary repairs.
7. Clear the DTCs and monitor your car’s performance.

8. Advanced Diagnostics with Check Engine Apps

In addition to reading and clearing DTCs, check engine apps can be used for advanced diagnostics, such as monitoring sensor data, performing diagnostic tests, and programming modules.

8.1. Monitoring Sensor Data

Check engine apps provide real-time data from your car’s sensors, allowing you to monitor various parameters, such as engine temperature, RPM, and fuel consumption. This data can be used to diagnose a wide range of issues and track your car’s performance over time.

8.2. Performing Diagnostic Tests

Some check engine apps offer diagnostic tests that can help you identify potential problems. These tests may include:

• Oxygen Sensor Tests: These tests check the performance of your oxygen sensors.
• Catalytic Converter Tests: These tests check the efficiency of your catalytic converter.
• EGR Valve Tests: These tests check the performance of your EGR valve.
• EVAP System Tests: These tests check the integrity of your EVAP system.

8.3. Programming Modules

Some check engine apps allow you to program various modules in your car, such as the ECU, transmission control module (TCM), and anti-lock braking system (ABS) module. This feature is typically used by professional mechanics and requires specialized knowledge and equipment.

8.4. Using Extended PID’s

Extended PID’s (Parameter Identification) provide access to additional sensor data that is not available through standard OBD-II protocols. This feature is particularly useful for diagnosing issues with specific car makes and models.

8.5. Data Logging and Analysis

Data logging allows you to record sensor data over time. This feature is useful for diagnosing intermittent problems and tracking your car’s performance under different conditions. You can then analyze the data to identify trends and potential issues.

9. Benefits for Professional Mechanics

Check engine apps offer numerous benefits for professional mechanics, supplementing traditional diagnostic tools and improving efficiency. According to a report by the Bureau of Labor Statistics, the median annual wage for automotive service technicians and mechanics was $46,880 in May 2023. Utilizing check engine apps can enhance their diagnostic capabilities and potentially increase their earnings.

9.1. Quick Checks and Preliminary Diagnostics

Check engine apps can be used for quick checks and preliminary diagnostics, saving time and improving efficiency. Mechanics can quickly read DTCs, monitor sensor data, and perform basic tests to identify potential issues before performing more detailed diagnostics.

9.2. Supplementary Diagnostic Tool

Check engine apps can supplement traditional diagnostic tools, providing additional data and insights. They can be used to verify the accuracy of traditional diagnostic equipment and provide a second opinion.

9.3. Remote Diagnostics

Some check engine apps offer remote diagnostics capabilities, allowing mechanics to diagnose issues from a remote location. This can be particularly useful for diagnosing problems with vehicles that are located in remote areas or are difficult to access.

9.4. Access to Vehicle Information

Check engine apps provide access to a wealth of vehicle information, including DTC descriptions, sensor data, and repair guides. This information can help mechanics diagnose issues more quickly and accurately.

9.5. Improved Customer Service

By using check engine apps, mechanics can provide better customer service. They can explain the cause of the check engine light in clear and simple terms, provide accurate estimates for repairs, and track the progress of repairs.

9.6. Cost Savings

Check engine apps can help mechanics save money by reducing diagnostic time, improving accuracy, and preventing unnecessary repairs.

10. Real-World Applications of Check Engine Apps

Check engine apps have numerous real-world applications, ranging from everyday maintenance to advanced diagnostics.

10.1. Monitoring Fuel Efficiency

Check engine apps can be used to monitor your car’s fuel efficiency and identify ways to improve it. By tracking your fuel consumption over time, you can identify trends and potential issues, such as a faulty oxygen sensor or a vacuum leak.

10.2. Diagnosing Performance Issues

Check engine apps can be used to diagnose performance issues, such as poor acceleration, rough idling, and misfires. By monitoring sensor data and performing diagnostic tests, you can identify the cause of the problem and take appropriate action.

10.3. Preparing for Emission Tests

Check engine apps can be used to prepare for emission tests. The emission readiness tests verify that all necessary systems have been tested and are functioning correctly, ensuring that your car will pass the test.

10.4. Tracking Vehicle Maintenance

Check engine apps can be used to track your vehicle’s maintenance schedule. You can set reminders for oil changes, tire rotations, and other routine maintenance tasks.

10.5. Preventing Costly Repairs

By identifying potential problems early, check engine apps can help you prevent costly repairs. You can address minor issues before they escalate into major problems, saving you money and keeping your car running smoothly.

11. The Future of Car Diagnostics

The future of car diagnostics is likely to be increasingly reliant on advanced technologies, such as artificial intelligence (AI), machine learning (ML), and the Internet of Things (IoT). According to a report by MarketsandMarkets, the automotive diagnostics market is projected to reach $56.5 billion by 2026, driven by the increasing adoption of these advanced technologies.

11.1. AI-Powered Diagnostics

AI-powered diagnostics can analyze sensor data and DTCs to identify potential problems more accurately and efficiently. AI algorithms can learn from vast amounts of data and identify patterns that human mechanics may miss.

11.2. Predictive Maintenance

Predictive maintenance uses AI and ML to predict when a component is likely to fail. This allows you to perform maintenance before the component fails, preventing costly repairs and downtime.

11.3. Over-the-Air (OTA) Updates

Over-the-air (OTA) updates allow car manufacturers to update your car’s software wirelessly. This can be used to fix bugs, improve performance, and add new features.

11.4. Integration with IoT Devices

Integration with IoT devices, such as smart home devices and wearable devices, can provide additional data and insights into your car’s performance. For example, your smart home device could remind you to schedule an oil change based on your car’s mileage.

11.5. Enhanced Remote Diagnostics

Enhanced remote diagnostics will allow mechanics to diagnose issues from a remote location with greater accuracy and efficiency. This will be particularly useful for diagnosing problems with electric vehicles (EVs) and other advanced technologies.

12. FAQ About Check Engine Apps

Here are some frequently asked questions about check engine apps:

12.1. What is a check engine app?
A check engine app is a software application designed to interface with your car’s onboard diagnostic (OBD) system, allowing you to read diagnostic trouble codes (DTCs), monitor sensor data, and gain insights into your car’s overall health.

12.2. How does a check engine app work?
The app connects to your car via an OBD-II adapter, which plugs into the OBD-II port. This adapter uses Bluetooth or Wi-Fi to transmit data to the app, which then decodes and presents it in an easy-to-understand format.

12.3. Is a check engine app worth it?
Yes, a check engine app is worth it because it helps identify potential problems early, understand diagnostic trouble codes (DTCs), monitor vehicle performance, save money on repairs, and check emission readiness.

12.4. What is the best check engine app?
Some of the top check engine apps include Car Scanner ELM OBD2, Torque Pro, OBD Fusion, BimmerCode, Dr. Prius/Dr. Hybrid, FORScan, and DashCommand, each offering unique features and benefits.

12.5. What is the difference between OBD-I and OBD-II?
OBD-I is an earlier version of the on-board diagnostic system, while OBD-II is a standardized system used in most cars and light trucks manufactured since 1996, offering more comprehensive diagnostics.

12.6. Can a check engine app clear the check engine light?
Yes, most check engine apps allow you to clear diagnostic trouble codes (DTCs), which turns off the check engine light. However, the light will reappear if the underlying issue persists.

12.7. Do I need an internet connection to use a check engine app?
Some features of a check engine app may require an internet connection, such as accessing online databases of DTC descriptions or downloading updates. However, basic functions like reading real-time data and DTCs typically do not require internet access.

12.8. Are check engine apps safe to use?
Yes, check engine apps are generally safe to use, but it’s important to choose reputable apps and avoid cheap Chinese clones of ELM327 adapters, as they may not be reliable and could potentially damage your car’s ECU.

12.9. Can a check engine app diagnose all car problems?
While check engine apps are powerful diagnostic tools, they cannot diagnose all car problems. Some issues may require specialized equipment and expertise to diagnose.

12.10. Where can I buy a check engine app and OBD-II adapter?
You can purchase check engine apps from app stores like Google Play and the Apple App Store. OBD-II adapters are available from online retailers like Amazon, as well as from auto parts stores.

Understanding your car’s health has never been easier with a check engine app. At CAR-TOOL.EDU.VN, we are dedicated to providing you with the resources and information you need to keep your vehicle in top condition. By using a check engine app, you can stay informed, save money, and ensure your car runs smoothly for years to come.

Ready to take control of your car’s diagnostics? Contact us today at 456 Elm Street, Dallas, TX 75201, United States, or reach out via Whatsapp: +1 (641) 206-8880. Visit our website at CAR-TOOL.EDU.VN for more information and expert advice on automotive tools and maintenance. Let CAR-TOOL.EDU.VN help you drive with confidence and peace of mind by finding quality auto parts and tools!