TUNER'S GUILD MEMBER
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Eliasz Poluszczyk

Eliasz Poluszczyk

Member since 2026
CERTIFICATION PROGRESSION
Five levels, each earned through Tuners Guild training. Completed courses and levels open their certificates.
How levels work
Foundation
Foundation ECU & WinOLS® basics
  • WinOLS from ZERO
  • Safe read/write of ECU
2 courses to reach this level: WinOLS from ZERO and Safe read/write of ECU
Tuning Engineer
Calibration & Optimization
  • Gasoline
  • Fundamental
  • Practice
  • Mastery
  • Diesel
  • Fundamental
  • Practice
  • Mastery
Reverse Engineer
Ghidra, ECU Structures & Logic
  • TriCore
  • Fundamental
  • Practice
  • Mastery
  • Renesas
  • Fundamental
  • Practice
  • Mastery
  • PowerPC
  • Fundamental
  • Practice
  • Mastery
ECU Authority
Complex and non-standard cases
Assigned individually by Tuners Guild. Not reachable through courses alone.
Instructor
Teaches and shapes the method
Assigned to Tuners Guild instructors.
How levels work →