Optimum torque delivery and fuel efficiency merge seamlessly in this advanced calibration designed for the 2.0 CRDi engine. By reshaping the turbocharger boost curve and fine-tuning injection timing maps, the engine responds instantly to throttle inputs, creating a fluid, linear power band from idle all the way to the redline. Rail pressure and injection quantity tables have been meticulously optimized to stabilize combustion under varying loads and RPMs, dramatically reducing smoke and particulate emissions without any compromise to performance. EGR flow adjustments maintain ideal exhaust gas temperatures during regeneration, aiding DPF longevity and preventing clogging, while diagnostic routines remain fully intact to avoid fault codes and preserve serviceability with standard dealership tools. Transmission shift maps on the 6-speed manual gearbox have been resynchronized with the engine’s enhanced torque curve, ensuring crisper, more accurate gear changes under load and reducing drivetrain shock. Adaptive boost control strategies minimize turbo lag, delivering a surge of mid-range power that transforms daily driving, overtaking, and light towing duties. Throttle pedal mapping has been smoothed to eliminate abrupt transitions, maintaining predictable response even under rapid throttle modulation. In addition, the calibration incorporates fuel-economy refinements, leveraging lean-burn maps during partial load conditions to reduce consumption without detracting from the lively driving character. All modifications are constrained within OEM safety margins to protect engine and transmission components, ensuring that reliability and longevity remain uncompromised. Tested extensively on a professional dynamometer and validated against factory specifications, this Stage 1 ECU tuning elevates the Sportage’s driveability, performance, and efficiency—perfect for drivers seeking a balanced upgrade for both urban commuting and spirited road use.