For professionals


WinOLS training

Professionals very often talk about the features of engine controllers and their chip-tuning, but the information circulating on the internet or among friends is in most cases very limited and vague.

If anyone has participated in a training offered by the automotive companies, they might had had the impression that some questions, such as, "what tuning functions the ECU has" got vague and often evasive answers. Such a behavior should not be surprising, considering the fact that the sharing of information, which should not be accessible to everyone, can cause considerable harm, if used by amateurs. This procedure is justified by the fact of carrying out repairs to a workshop (sensors, wiring, el. adjustments) without taking into account the electronics, which very often is the cause of the fault. Furthermore, the current European legislation on environmental protection forces the automotive industry to “throttle” engines.

Quite often we can see the case that the customer comes to the distributor or seller of car because the new “astonishing” car is slower than advertised, uses a lot of fuel and, paradoxically, is generally of poorer quality than the old car? What's more, the client will be explained by mechanician or dealer often with an answer like "this is a special feature of this type of car," which means that nothing can be done and driver has to get used to it.

One fact is certain: the tools that workshops have at their disposal are usually not sufficient to work with the ECU, so the technicians can’t tune key parameters: the torque limiter injection, ignition, boost pressure and many others. These types of operations are performed in limited circumstances and only by an authorized service personnel.

The aim of the training – which will contain very interesting information, usually unknown to wide public – is to explain to the technicians / mechanicians how does the ECU really work and what are the real possibilities of making safe modifications to the ECU parameters. With dedicated programs operated by the car tuning companies, we will explain and train you at the safe and efficient optimization of the ECU.

Training in the V-tech Tuning  based on the WinOLS software and tools manufactured by EVC Electronic is authorized by EVC.

Types of training

Training is offered at three levels: basic (one level) and professional (two levels) and optionally training with the WinOLS software.

Level 1 training agenda:

  • How the ECU works, functions inside the ECU
  • Transmission of information from the sensor to the actuator
  • EPROM, EEPROM, PROM and flash memory, modification logic in complete EPROM
  • BDM interface, boot mode, JTAG interface
  • OBDII, available flashers & tools, serial (OBD, CAN) and conventional modification
  • WinOLS introduction and basics, user interface and capabilities of the program (optional)
  • Signification and utility of the hexadecimal system, use of the ASCII code
  • Linear checksum 8bit, 8bit even and odd, 16bit; calculation of the checksum, anti-tuning systems
  • How to distinguish a map from a code and garbage/refuse? Repeatability of map structures
  • Chip tuning basics
  • Techniques for remapping turbo diesel engines
  • Techniques for remapping petrol aspirated engines
  • Techniques for remapping petrol turbo engines
  • ECU families Bosch and Siemens – differences, similarities, factors, methods of tuning
  • Practical exercises

Level 2 - training agenda:

  • Differences/similarities in the ECU families (Bosch, Siemens, Marelli, Ford Infineon, Denso etc.)
  • Automatic tuning, WinOLS scripts, data replication
  • Fine tuning of diesel engines, power gain via altering of fuel amount, pressure of fuel, injection angle, boost, EGR flow, variable cams
  • Effect of pre-, main- and post-combustion injection timing angles onto engine performance and exhaust gas composition & EGT temperature
  • Fine tuning of gasoline engines, power gain via altering of fuel amount, pressure of fuel, injection angle, boost (where applicable), EGR flow, variable cams, variable intake systems.
  • EGT control, methods of reduction of exhaust gas temperature
  • Critical limiters, thermal limiters – how to find, control, deactivate
  • MED9/MED17/Tricore - closed loop cross checking validators & torque monitoring inside ECU – ommiting, controlling, deactivation
  • Important tips & tricks while high power (stage 2) tuning & customized/modified cars (big turbo, exhaust, intercooler etc)
  • DTC Error tables, P-codes, factory codes – controlling
  • Practical methods of EGR, DPF, FAP, SCR deactivation
  • Optimizing settings for performance vs fuel consumption
  • Practical exercises

Level 3 training agenda:

  • Introduction to reverse engineering
  • Table of vectors, adding own functions, injecting additional code, activation/deactivation of functions/structures
  • Re-creating table of DTC codes (errors), altering error levels, system behaviour on error
  • Bit-switch controlling of functions, configuration tables of ECU
  • Altering pre-scalers of sensors, tresholds of sensors, CAN bus live data
  • Advanced methods of DPF/FAP deactivation
  • Stand-alone systems tuning, race cars tuning, durability&reliability control
  • Automatic gearboxes tuning
  • Practical exercises

WinOLS training agenda:

  • User interface and capabilities of the program
  • Modification logic in complete EPROM
  • Signification and utility of the hexadecimal system
  • Use of the ASCII code
  • Linear checksum 8bit, 8bit even and odd, 16bit; calculation of the checksum
  • How to distinguish a map from a code and garbage/refuse? Repeatability of map structures
  • 2D and 3D graphics – right interpretation and use
  • How to centre and frame a map?
  • Relations between values and maps – methods for identification
  • Creating setting files, drivers and database
  • Creating projects
  • File codes
  • Differences/similarities in the ECU families (Bosch, Siemens, Marelli, Ford Infineon, Denso etc.)
  • Automatic tuning, WinOLS scripts, data replication

Specialized trainings (by additional appointment):

  • Trucks chip tuning – DAF, MAN, Scania, Volvo, Mercedes Trucks, Iveco. Training includes following themes/subjects: performance chip tuning of trucks (LKW), fuel economy and fuel saving in trucks, Adblue correction, DPF corrections, EGR/AGR corrections, fine tuning, eco tuning of trucks (LKW) on dyno.
  • Agriculture chip tuning – Valtra, Case, Claas, Massey Ferguson, Volvo, John Deere, Cummins, Deutz-Fahr, JCB, Caterpillar, New Holland. Subjects: performance chip tuning of agriculture machines, fuel saving, eco tuning of agriculture, Adblue, DPF, EGR/AGR corrections, fine tuning on
  • Water crafts, jetskis (Polaris, BRP Seadoo, Yamaha etc) chip tuning
  • Fine tuning of stand-alone systems, racing/off-road (with dyno)

Petrol (turbo, compressor, NASP) engines

  • typical closed loop control of fuel and ignition
  • „permanent knocking” mechanism, control and results
  • ignition pitfalls, setting proper ignition base for knock control system
  • knock reaction – understanding and control
  • fuel control by lambda
  • fuel control by throttle dynamic
  • closed/open loop of fuel
  • flow control, controlling power by air flow
  • understanding flow demand curve – spool, interception, constant torque, constant power
  • adapting flow demand to alternative turbochargers
  • air flow modulation in naturally aspirated and compressor engines – way to get power
  • specific solutions in Delphi, Denso, Siemens

Day with diesel tuning / Day with gasoline tuning:

This course differs from our typical one-to-one trainings. It is oriented towards beginners, who want to verify whether becoming a skilled pro tuner is reachable for them (level 1) or already make own tuning files, but want to improve skills and repeatability and learn new useful tricks (level 2).

Training formula bases on one day (7 hours) training, focused only on diesel controllers (level 1 – Bosch, level 2 – various types) or gasoline controllers, respectively.

Such training will be organized in groups of 5 persons.

The cost of training:
400€ net / person – Level 1
500€ net / person – Level 2

Training takes place on Saturday and lasts for 7 hours


  Level 1 - standard
(2 days)
Level 2
(3 days)
WinOLS training included
Level 3
(2 days)
Specialised / dedicated training WinOLS training
1 person 1500 € 2400 € 3100 € 1300 €/day 950 €
2 persons 2500 € 3900 € 5000 € 2100 €/day 1650 €
3 persons 3300 € 5100 € 6500 € 2800 €/day 2250 €
4 persons 3900 € 6000 € 7600 € 3300 €/day 2750 €
5 persons 4400 € 6700 € 8400 € 3800 €/day 3150 €

Examples of Letters of Reference

We look for distributors in some countries. If you are interested in PHEV Box distribution, or distribution of other products (power boxes, EPC power controllers, SeaDoo/BRP flashers etc) or arranging trainings for chiptuning & WinOls (for tuners) in your country – please contact us: