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This guide explains the meaning of the P0420 engine code（Catalyst System Efficiency Below Threshold Bank 1), symptoms you might notice, common causes, and effective fixes. Whether your scanner shows OBD P0420 or EOBD DTC P0420, understanding this code is crucial to restoring engine performance and meeting emission standards.

This article shares a hands-on review of the ANCEL DS600 automotive diagnostic scanner, centered on real-world repair scenarios—from resolving a 2015 Audi A6’s airbag module coding issue to performing BMS resets on a BMW 5 Series and troubleshooting a Ford Fusion’s cooling fan problems. 

This article conducts a comprehensive comparison between two popular ANCEL automotive diagnostic scanners, the DS600 and DS700, covering hardware design, functional services, data processing, smart features, software support, and pricing. 

The August 2025 ANCEL OBD2 scanner update enhances performance and compatibility for both DIY users and professional mechanics. Key improvements include expanded support for 2025-model-year heavy-duty vehicles (e.g., Ford Truck 6/9PIN, Isuzu), optimized DPF diagnostic functions, smoother communication with HD vehicle systems (like VOLVO, MACK), and bug fixes for metric/imperial unit conversion and UDS protocol stability.

Understand DTC P1101 (engine code P1101) – from symptoms to repairs. Focus on Chevy models (P1101 Chevy Malibu, Cruze 1.4 Turbo) and GM P1101-00 specifications.

This article shares a technician’s real-world experience using the ANCEL HD8000 heavy-duty truck scanner to resolve a Volvo FH’s DPF (Diesel Particulate Filter) issue. 

This article focuses on three top heavy-duty truck diagnostic scanners in 2025. Through ranking and in-depth evaluation, it analyzes the core advantages of the HD8000, X7HD, and V6HD under the ANCEL brand.

Discover 20+ essential special functions in car diagnostic tools (ABS bleeding, DPF regeneration, IMMO key programming & more). Learn when to use each function for efficient car repairs and maintenance.

ANCEL July 2025 Scanner Update including EV support & faster diagnostics for Ford & Toyota.

This guide covers the car's PCV system: a closed-loop emission control system (U.S. standard since 1968) that recirculates crankcase gases. It details key components like PCV valve, hoses, air separators, and their roles in engine protection and emission reduction.

Cornertan, a technician with over ten years of professional experience in the automotive industry, conducted an in-depth evaluation of the ANCEL V6 PRO bidirectional scanning tool as a real user. In the article, he shared the performance of the tool in actual diagnosis and maintenance scenarios, including the application of its functions such as bidirectional control, key programming, and ABS exhaust in real maintenance cases.

ANCEL released a significant update to its scanner products in June 2025, covering vehicle model adaptation expansion, system optimization, and the addition of special features, aiming to enhance the diagnostic capabilities and operational experience of the equipment for vehicles of multiple brands.

Tired of $500+ DPF regeneration fees for diesel farm/construction gear? The ANCEL HD3600 lets you reset DPFs yourself—no subscriptions, works for John Deere/Caterpillar & more. Lifetime free updates, under $500. Fix equipment without dealer help.

This comprehensive article explores the critical role of professional heavy duty truck diagnostic scanners in modern commercial vehicle maintenance, focusing on the ANCEL X7HD as a leading solution. It highlights the unique diagnostic requirements of semi trucks.

The article comprehensively covers EGR cleaning from basic understanding through advanced DIY procedures

Briefly introduce the role of the brake light switch in the vehicle safety system and the risks that may arise when it malfunctions. It is proposed that this article will help users determine and test whether the component is faulty and provide repair suggestions.

The article delves into the importance of heavy goods vehicles (HGVs) in the modern logistics system and highlights the crucial role of professional diagnostic tools—specifically the ANCEL V5 HD—in improving HGV maintenance efficiency, reducing operational costs, and extending vehicle lifespan.

Learn what causes OBD-II code P0014, its symptoms, how serious it is, and step-by-step diagnosis and repair methods.

Explore everything you need to know about Exhaust Gas Recirculation (EGR) systems in this comprehensive guide. Learn how EGR works and its benefits.

This article highlights the importance of marine diagnostic tools in maintaining modern boat engines,It compares top 2025 tools: ANCEL MR500 for Yamaha/Suzuki outboards, Mercury OEM tools for Mercruiser/Mercury, and Rinda TechMate Pro for Volvo Penta.