In this advanced WinOLS remap training, we modify the Bosch ME17 petrol maps identified in Part 1 and explain their function, units, axes, safe modification limits, and real effects on torque, power, fuel consumption, and engine reliability.

Introduction to ME17 Advanced Remapping in WinOLS

All tuning strategies follow the Schiller Tuning scientific calibration method developed from extensive Ford turbo petrol remapping experience.

Torque Model Maps

The torque model defines requested and permitted engine torque. In WinOLS we convert raw values into Nm and explain torque hierarchy interaction with airflow and boost.

Sub-maps:

• Driver Wish
• Torque Limiter
• Optimum Torque
• Torque Monitoring

Increasing these maps raises torque request and ECU torque ceiling. Safe tuning requires proportional airflow and boost increase. Excessive scaling causes torque intervention, throttle closure, or limp mode.

Air Charge & Load Maps

Air charge maps determine cylinder filling and engine load calculation. In WinOLS we convert axes into mg/stroke and load %.

Sub-maps:

• Load Request
• Air Mass Through Throttle
• Throttle Angle
• Charge Model

Higher load increases torque potential and turbo demand. Over-increasing without boost/fuel adjustment leads to lean combustion and knock risk.

Turbocharger Control Maps

Turbo maps regulate boost pressure and wastegate behavior. Pressure values are converted to mbar/bar and turbo efficiency limits explained.

Sub-maps:

• Boost Target Pressure
• Boost Limiter
• Wastegate Duty Cycle
• Turbo Correction

Higher boost increases power but raises turbine speed and temperature. Excessive boost causes turbo overspeed, surge, and mechanical stress.

Ignition Timing Maps

Ignition maps define combustion phasing. Values are converted to crankshaft degrees and knock margin tuning explained.

Sub-maps:

• Base Spark Advance
• Optimum Spark
• Minimum Spark
• Full Load Spark
• Knock Control

Advancing timing increases torque until knock threshold. Excessive advance causes detonation. Retarding reduces power but increases safety margin.

Fuel & Lambda Maps

Fuel maps control AFR for power and thermal protection. Lambda values are converted to AFR.

Sub-maps:

• Lambda Request
• Component Protection Lambda
• Injection Base
• Injection Correction

Richer mixtures reduce temperature and protect turbo/pistons. Lean mixtures improve economy but increase combustion heat and knock probability.

Axis Conversion & Real-Unit Scaling in WinOLS

We teach conversion of ME17 ECU raw data into real units:

• Torque → Nm
• Air mass → mg/stroke
• Boost → bar / mbar
• Lambda → AFR
• Ignition → ° crank

Correct scaling is essential for accurate remapping.

Safe ME17 Remapping Strategy (Schiller Method)

Our tuning guide teaches:

• Proportional torque scaling
• Boost-air-fuel synchronization
• Knock-safe ignition advance
• Thermal load control
• Turbo speed protection

This ensures reliable Ford Focus power increase without ECU intervention or hardware damage.

Schiller Tuning Support & Professional Training

This WinOLS remap training is based on Schiller Tuning’s proven petrol ECU calibration methodology developed from thousands of real vehicle remaps.
Students receive structured tuning knowledge, safe modification limits, and access to online support and ECU calibration consultation.