Are you tired of seeing that dreaded check engine light illuminate on your dashboard? The Konnwei KW820 OBD2 scanner is designed as an affordable, entry-level tool to help you diagnose car problems yourself. This review delves into the features, functionality, and overall value of the Konnwei KW820 OBD2 scanner to help you decide if it’s the right tool for your automotive diagnostic needs.
Key Features and Functions of the Konnwei KW820
The Konnwei KW820 OBD2 scanner is packed with features that make it a useful tool for both novice and experienced car owners. Let’s explore what this scanner offers:
- Check Engine Light Diagnosis: The primary function of the KW820 is to read and clear diagnostic trouble codes (DTCs) that trigger the check engine light (MIL). It quickly identifies the source of the problem, saving you a trip to the mechanic for a basic scan.
- Extensive Code Support: This scanner supports both generic (P0, P2, P3, and U0) and manufacturer-specific (P1, P3, and U1) codes. This broad compatibility ensures it can read codes across a wide range of vehicle systems.
- MIL Reset and Monitor Reset: After diagnosing and addressing the issue, the KW820 can turn off the check engine light and clear stored codes. It also resets emission monitors, which is helpful after repairs.
- DTC Definitions Display: No need to look up codes online! The KW820 displays DTC definitions directly on its screen, providing instant understanding of the error code meaning.
- Freeze Frame Data: This feature captures a snapshot of vehicle data when a fault occurs. Freeze frame data helps in understanding the conditions under which the problem arose, aiding in more accurate diagnosis.
- I/M Readiness Status: Check your vehicle’s emission system readiness for state smog checks. The I/M readiness status confirms if all emission monitors have run and completed their tests.
- Pending Codes Identification: The KW820 can identify pending codes, which are intermittent faults that haven’t yet triggered the check engine light. This allows for proactive problem solving before issues escalate.
- Live Data Stream: View real-time engine data parameters (like RPM, coolant temperature, etc.) to monitor vehicle performance and sensor readings. This live PCM datastream is crucial for diagnosing running issues.
- O2 Sensor Test Data: Diagnose issues related to your oxygen sensors with live O2 sensor test data display. This helps in identifying problems with fuel efficiency and emissions.
- Data Graphing: For 1996 and newer vehicles, the KW820 can graph live data, providing a visual representation of sensor information for easier analysis.
- Data Storage and Playback: Record and review live sensor data later. This is useful for intermittent problems or for analyzing data away from the vehicle.
- Module Presence Test: Verify the presence and functionality of different vehicle modules.
- Vehicle Information Retrieval: Retrieve essential vehicle information such as VIN (Vehicle Identification Number), CIN (Calibration Identification Number), and CVN (Calibration Verification Number).
- CAN and OBD-II Protocol Support: The KW820 supports CAN (Controller Area Network) and all current OBD-II protocols, ensuring compatibility with most modern vehicles.
- Built-in DTC Lookup Library: Access a built-in OBD-II DTC lookup library directly on the scanner, eliminating the need for external resources.
- Large Backlit LCD Screen: The large, easy-to-read backlit LCD screen ensures clear visibility even in dimly lit environments.
- Software Upgradeable: Keep your scanner up-to-date with the latest software via the internet through the official Konnwei website, ensuring long-term usability.
- PC Printable Data: Print diagnostic data via PC for record-keeping or further analysis.
Vehicle Compatibility: Does the KW820 Work With Your Car?
The Konnwei KW820 OBD2 scanner is designed to be compatible with a wide range of vehicles that adhere to OBD2 protocols. Here’s a general compatibility guideline:
North & South America (including Brazil):
- OBD2 compliant vehicles from 2000 onwards.
- Compatible with brands like Chrysler, Ford, GM, and Jeep.
European Vehicles:
- OBD2 compliant vehicles from 2003 onwards.
- Supports brands including Alfa Romeo, Audi, BMW, Mercedes-Benz, Citroen, Fiat, Ford, Jaguar, Land Rover, Opel, Peugeot, Renault, Volvo, VW, and more.
Asian Vehicles (including Australia):
- OBD2 compliant vehicles from 2006 onwards.
- Works with Japanese brands like Honda, Hyundai, KIA, Lexus, Mazda, Mitsubishi, Nissan, Subaru, Suzuki, Toyota, as well as Dacia and Isuzu.
Chinese Vehicles:
- OBD2 compliant vehicles from 2011 onwards.
- Compatible with brands like BYD, Chery, Geely, Great Wall, and Karry.
Specific Russian Vehicle Compatibility:
- Select Ssangyong models (Actyon, Korando, Kyron, Rexton, Rodius) within specific year ranges (2007-2017).
- LADA Niva (1.7 Gasoline) and LADA Priora (1.5 Gasoline) from 2011-2017 and 2008-2017 respectively.
Important Note: While the KW820 covers a broad range, OBD2 compliance and specific year of manufacture are crucial. Always verify your vehicle’s OBD2 compliance and production year to ensure compatibility. If unsure, consult your vehicle’s manual or check with the manufacturer. No scanner guarantees 100% car coverage, and testing on another compatible vehicle is recommended if you encounter issues.
Konnwei KW820 Specifications: A Quick Look
- Detection Range: 0.3-2.5M (This specification seems unrelated to an OBD2 scanner and may be a mistake in the original description – likely referring to a parking sensor, which is not relevant to this product).
- Type: Handheld OBD2/EOBD code reader.
- Operating Temperature: -60 to +60 (°C).
- Power: 1W.
What’s Included in the Konnwei KW820 Package?
When you purchase the Konnwei KW820 OBD2 scanner, you’ll receive:
- Konnwei KW820 Auto Engine Analyzer main unit.
- 16-pin OBD2 cable for connecting to your vehicle.
- English user manual for instructions and guidance.
- Portable carrying bag for convenient storage and transport.
- Retail box packaging.
Final Verdict: Is the Konnwei KW820 a Good Buy?
The Konnwei KW820 OBD2 scanner offers a comprehensive set of features for its price point, making it a solid entry-level diagnostic tool. It’s particularly well-suited for car owners who want to understand and address basic check engine light issues without spending a fortune on professional diagnostic services.
Pros:
- Affordable and budget-friendly.
- Easy to use with a clear display and straightforward interface.
- Supports a wide range of OBD2 functions, including live data and O2 sensor testing.
- Broad vehicle compatibility across various makes and models (OBD2 compliant).
- Software upgradeable for extended usability.
Cons:
- Entry-level tool; may lack advanced features found in professional-grade scanners.
- Vehicle compatibility is subject to OBD2 compliance and manufacturing year; not universally compatible with all vehicles.
Who is it for?
The Konnwei KW820 is ideal for:
- DIY car owners who want to diagnose and fix basic car problems themselves.
- Individuals looking for an affordable way to read and clear check engine lights.
- Anyone needing a basic OBD2 scanner for general car maintenance and diagnostics.
If you’re seeking a reliable, budget-friendly OBD2 scanner to empower you with basic car diagnostics, the Konnwei KW820 is a worthwhile option to consider.
