Description
Master WinOLS Vol.2: ECU Tuning for Diesel Engine is a professional WinOLS Manual developed by AutoExplain, designed specifically for diesel ECU tuning. This book provides a complete and practical guide to understanding diesel engine control strategies, torque-based ECU logic (EDC15, EDC16, EDC17), and advanced map editing techniques using WinOLS.
From core diesel engine theory to real-world case studies such as EGR, DPF, and AdBlue OFF, Master WinOLS Vol.2 helps technicians, tuners, and workshops build a solid foundation and confidently apply WinOLS to modern diesel vehicles.

Introduction – What Is Master WinOLS Vol.2?
Master WinOLS Vol.2: ECU Tuning for Diesel Engine is an advanced WinOLS Manual created by AutoExplain, focusing entirely on diesel ECU remapping and calibration. This book is designed to help technicians and tuners understand how diesel engines work at both mechanical and electronic levels, then apply that knowledge directly in WinOLS for safe and effective tuning.
Unlike generic tuning guides, Master WinOLS Vol.2 goes deep into torque-based diesel control strategies, including EDC15, EDC16, and EDC17 systems. It explains how fuel, air, torque, rail pressure, and turbo control maps interact inside the ECU, giving readers a clear tuning logic instead of trial-and-error editing.
With detailed explanations, real ECU examples, and step-by-step practical cases (EGR, DPF, AdBlue OFF and Bosch ECU tuning), this manual serves as a complete learning path—from fundamental diesel theory to professional-level WinOLS calibration.






Table of Content WinOLS Manual For Diesel Engine
Why You Need a Dedicated WinOLS Manual for Diesel Engines?
Diesel ECU tuning is fundamentally different from petrol engine tuning. It involves more complex torque-based strategies, advanced injection control, boost management, and strict emission systems such as EGR, DPF, and SCR.
A dedicated WinOLS manual for diesel engines helps you:
- Understand diesel-specific maps like torque limiters, smoke limiters, SOI/EOI, rail pressure, and boost control
- Avoid common mistakes that can cause limp mode, excessive smoke, or engine damage
- Work confidently with modern diesel ECUs from Bosch, Delphi, Denso, and Siemens
- Apply WinOLS tools correctly for checksum correction, map identification, and structured project workflow


Master WinOLS Vol.2, developed and recommended by AutoExplain, is designed specifically for tuners who want to move beyond trial-and-error and build a solid, professional foundation in diesel ECU calibration.
You might be interested: Master WinOLS Vol.1: ECU Tuning for Petrol Engine
What You Will Learn From This WinOLS Manual?
This manual provides a structured and practical learning path for mastering diesel ECU tuning using WinOLS. Instead of guesswork, you will gain a clear understanding of how diesel control strategies work and how to modify them safely and effectively.
By studying this manual, you will learn how to:
- Understand diesel engine control logic and torque-based ECU strategies
- Identify and interpret key diesel maps in WinOLS (torque limiters, smoke limiters, rail pressure, boost, SOI/EOI)
- Build a clean and professional WinOLS project structure
- Modify injection, boost, and torque maps for performance and drivability
- Control smoke output and air–fuel balance safely
- Handle EGR, DPF, and emission-related maps correctly
- Apply checksum correction and validation using WinOLS tools
- Avoid common tuning mistakes that lead to limp mode or ECU faults






A few photos showing the contents inside the book
Master WinOLS Vol.2, created by AutoExplain, is designed to help tuners develop real-world diesel calibration skills that can be applied confidently to customer vehicles.
Book Structure Overview (Chapter-by-Chapter)
Chapter I – Basic Theory of Diesel Engines and Remapping
This chapter builds the foundation for diesel ECU tuning by explaining how diesel engines operate and how electronic control systems manage performance and emissions.
You will learn about:
- Diesel combustion principles and engine operating cycles
- Key differences between diesel and gasoline engines
- Why diesel engines produce high torque at low RPM
- Air–fuel ratio (AFR), lambda (λ), and their role in diesel tuning
- Fundamentals of ECU remapping, reflash, and cloning concepts
- Torque-based engine management and calculation strategies
- Overview of Electronic Diesel Control (EDC15, EDC16, EDC17) systems
- Torque request, torque monitoring, and ECU control logic

Chapter II – Fuel Systems, Sensors, and Actuators
This chapter explains how diesel fuel systems and electronic components work together to control injection, boost, emissions, and overall engine performance.
You will learn about:
- Evolution of diesel fuel injection systems (inline, rotary, unit injector, common rail)
- Common Rail Direct Injection (CRDI) structure and working principles
- Differences between solenoid and piezo injectors
- Injection event strategies and digital rate shaping
- Turbocharged diesel systems and downsizing concepts
- Key sensors used in diesel ECUs (RPM, temperature, pedal, lambda, etc.)
- Main actuators such as injectors, fuel metering valves, rail pressure valves, and turbo actuators
- Emission control systems: EGR, DPF, SCR (AdBlue), and swirl flaps
- Turbocharger control systems, wastegate vs VGT, and combustion optimization


Chapter III – ECU Programming and Tuning Tools
This chapter focuses on the essential tools and equipment required to safely read, write, and program diesel ECUs in real-world tuning scenarios.
You will learn about:
- Core tools required for ECU tuning, including programmers, tuning software, and technical knowledge
- Supporting equipment such as battery stabilizers, power supplies, dyno systems, and AFR measurement tools
- Different types of ECU read/write tools and how they are classified by connection method
- Key differences between Master and Slave tuning tools
- ECU reading and writing workflows
- OBD flashing procedures and limitations
- Workbench programming methods for advanced and locked ECUs


Chapter IV – Tuning Software and Map Editing Techniques
This chapter provides a practical guide to tuning software, with a strong focus on WinOLS and professional map editing techniques for diesel ECUs.
You will learn about:
- Types of ECU tuning software used in professional environments
- Understanding ECU file formats, binary structure, and file sizes
- In-depth introduction to WinOLS (EVC Electronics)
- Overview of ECM Titanium and other tuning software
- Navigating the WinOLS interface and main workspace
- Display conversion between hexadecimal and decimal values
- Using map packs: defining axes, factors, and offsets
- Unit-based and relative map modification techniques
- Matrix editing, interpolation, and gradient smoothing
- Comparing original and modified ECU files to ensure accuracy



Chapter V – Advanced Diesel Tuning Techniques
This chapter dives deep into professional diesel tuning strategies, focusing on torque-based control, fuel management, and combustion optimization used in modern EDC16 and EDC17 ECUs.
You will learn about:
- Torque management logic in EDC16 and EDC17 ECUs
- Driver Wish, cranking torque, and torque limiter maps
- The relationship between torque, injected fuel quantity, and engine output
- Fuel quantity calculation and torque-to-IQ conversion
- Lambda control strategies and smoke limitation logic
- Injection timing control, including SOI and injection duration
- Rail pressure calibration and turbocharger control strategies
- Systematic diesel tuning methodology for main ECU maps
- How torque, fuel, air, and rail pressure maps interact
- Critical maps that should not be modified to maintain engine safety





Chapter VI – AdBlue Deactivation Techniques (SCR OFF)
This chapter provides advanced, real-world guidance on AdBlue (SCR) deactivation, with practical case studies on heavy-duty Euro 6 diesel vehicles.
You will learn about:
- SCR and AdBlue system operation in modern diesel engines
- Advanced AdBlue OFF strategies for Volvo and Renault vehicles
- ECU reading procedures for TRW EMS5 engine control units
- Step-by-step methodology for identifying AdBlue-related functions
- Safe and structured AdBlue deactivation logic
- Practical tuning sessions with real vehicles, including:
- Renault Magnum DXi13
- Renault Kerax 460 DXi
- Renault Kerax DXi 450HP
- Volvo FM 440 Euro 6
- Real calibration workflows using 2D map analysis and switch searching




Chapter VII – Bosch ECU Remapping Techniques: Analysis and Practical Application
This chapter focuses on hands-on Bosch ECU remapping, combining in-depth analysis with real-world tuning case studies across multiple ECU generations.
You will learn about:
- Manual tuning workflows for Bosch EDC16 diesel ECUs
- Core map structures and calibration logic used in Bosch ECUs
- Practical EGR and DPF OFF techniques on EDC16CP34 (VAG 2.7–3.0 TDI)
- Step-by-step chiptuning process for Bosch EDC15C2 on 2.0 HDI engines
- Understanding ECU functional diagrams and internal control logic
- Project setup, file preparation, and accurate map identification in WinOLS
- Identification and modification of key fuel, torque, rail pressure, and turbo maps
- Safe EGR deactivation strategies within Bosch ECUs
- Two-stage tuning methodology:
- Mode 1: Power increase through fuel and torque optimization
- Mode 2: Boosting performance via rail pressure and turbo control
- Recovery procedures for bricked or corrupted EDC15C2 ECUs
- Manual tuning techniques for Bosch MSA15 ECUs
- Detailed explanation of fuel-related and turbo-related maps
- Structured approach to tuning fuel delivery and turbocharger behavior





This chapter bridges theory and practice, guiding you through real ECU files, real calibration logic, and real tuning decisions used by professional diesel tuners.
Key Advantages of Master WinOLS Manual for Diesel Engines
- Diesel-Focused from Start to Finish: Built specifically for diesel engines, covering torque-based control, fuel strategies, turbo systems, and emissions logic used in modern ECUs.
- Structured Learning Path: Progresses logically from diesel engine fundamentals to advanced Bosch ECU remapping, making it suitable for both beginners and experienced tuners.
- In-Depth WinOLS Guidance: Explains WinOLS workflows clearly, including map identification, axis definition, factors, offsets, and safe editing techniques.
- Real ECU Strategies Explained: Covers EDC15, EDC16, and EDC17 control logic with practical explanations—not just theory.
- Advanced Tuning Techniques: Detailed sections on torque management, smoke control, injection timing, rail pressure, and turbo calibration.
- Practical Case Studies: Step-by-step tuning examples on real diesel ECUs, including Bosch EDC15C2 and EDC16 systems.
- Emissions System Knowledge: Clear technical understanding of EGR, DPF, SCR/AdBlue systems and how they interact with ECU strategies.
- Workshop-Ready Reference: Designed as both a learning manual and a long-term reference for daily tuning work.
- Logic-Based, Not Map-Pack Dependent: Teaches how to analyze and tune maps correctly rather than relying on pre-defined solutions.
This manual helps you build real diesel tuning knowledge—from understanding engine behavior to executing safe, professional ECU calibrations using WinOLS.
Who This Master WinOLS Manual for Diesel Engines Is For?
This WinOLS Manual is designed for readers who want a clear, structured, and practical approach to diesel ECU tuning—from fundamentals to advanced Bosch remapping techniques.
This book is ideal for:
- Beginners in ECU tuning who want to understand diesel engine logic before touching maps
- WinOLS users looking for a step-by-step diesel-focused manual instead of trial-and-error learning
- Automotive technicians & mechanics transitioning into ECU remapping and calibration
- Diesel tuning professionals who want deeper insight into Bosch EDC15 / EDC16 / EDC17 strategies
- Chiptuning workshop owners seeking a reliable reference for real-world tuning projects
- ECU programmers working with fuel, torque, turbo, EGR, DPF, and AdBlue systems
- Self-learners who prefer logic-based explanations over pre-made map packs
If you want to understand why maps work—not just how to edit them, this book is written for you.
How Master WinOLS Vol.2 Complements Vol.1?
Master WinOLS Vol.2 is designed as the natural continuation of Vol.1, expanding your tuning knowledge from petrol engines into the more complex world of diesel ECU calibration.
- From Petrol to Diesel Logic: While Vol.1 focuses on petrol engine tuning concepts and WinOLS fundamentals, Vol.2 applies those tools to diesel-specific control strategies such as torque-based management, fuel mass calculation, and smoke limitation.
- Deeper ECU Strategy Coverage: Vol.2 builds on the WinOLS skills learned in Vol.1 and introduces advanced diesel ECUs including Bosch EDC15, EDC16, and EDC17, which are not covered in depth in the petrol-focused volume.
- Advanced Map Interpretation: Concepts like map structure, axis definition, factors, and offsets learned in Vol.1 are taken further in Vol.2 with real diesel maps and practical calibration workflows.
- Expanded Tuning Scope: Vol.2 adds detailed coverage of turbo control, rail pressure, injection timing, torque monitoring, and emissions systems (EGR, DPF, SCR/AdBlue).
- Real-World Diesel Case Studies: Unlike Vol.1’s introductory examples, Vol.2 includes step-by-step diesel tuning projects and recovery scenarios based on real Bosch ECUs.
- Complete Learning Path: Together, Vol.1 and Vol.2 form a full WinOLS training system, covering both petrol and diesel engines—from fundamentals to professional-level ECU remapping.
In short, Vol.1 teaches you how to use WinOLS, while Vol.2 teaches you how to master diesel ECU tuning with it.
Why Choose This WinOLS Manual for Diesel Engines from AutoExplain
- Developed by Real ECU Professionals: This manual is created and curated by AutoExplain based on hands-on experience in diesel ECU tuning, not generic theory or copied content.
- Diesel-Specific, WinOLS-Centered: Fully focused on diesel engines and WinOLS workflows, helping you understand real Bosch ECU logic instead of relying on map packs or guesswork.
- Structured for Practical Learning: The content is organized from fundamentals to advanced applications, making it easy to follow whether you are learning or using it as a workshop reference.
- Based on Real ECUs & Case Studies: Includes practical examples from Bosch EDC15, EDC16, and EDC17 systems commonly used in passenger cars and commercial vehicles.
- Clear, Engineering-Level Explanations: Complex topics such as torque management, fuel mass calculation, smoke limitation, and emissions control are explained in a clear, logical way.
- Workshop-Ready Knowledge: Designed to support daily tuning work—safe calibrations, recovery methods, and professional tuning strategies are emphasized throughout the book.
- Ongoing Support from AutoExplain: Buyers receive guidance and support directly from AutoExplain, ensuring you’re not learning alone.
- Trusted Training Brand: AutoExplain is known for high-quality automotive training materials used by tuners, technicians, and workshops worldwide.
Choosing this manual means you’re investing in real diesel tuning knowledge, backed by AutoExplain’s technical expertise and long-term support.
Master WinOLS Vol.2: ECU Tuning for Diesel Engine is a complete and practical WinOLS Manual for anyone serious about diesel ECU tuning. It bridges the gap between theory and real-world calibration, guiding you from diesel engine fundamentals to advanced Bosch ECU remapping techniques with clarity and precision.
Backed by AutoExplain’s hands-on experience, this manual is not just a book—it is a long-term technical reference designed to help you tune diesel engines safely, logically, and professionally. Whether you are upgrading your skills or building a solid tuning foundation, this book gives you the knowledge to work with confidence in real workshop conditions.
If you need support or have any questions while using this WinOLS Manual, feel free to contact AutoExplain via WhatsApp: +1 (936) 289 6695 for direct assistance.
In addition to this WinOLS Manual, AutoExplain also provides professional ECU Tuning Services, supporting real-world tuning, calibration, and troubleshooting for both petrol and diesel vehicles.
Learn more about our: ECU Tuning Service




