EPS (electric power steering) systems need the control logic parameters tuning and mechanical parameters tuning to provide a better steerability and good steering feel. Both well combined tuning techniques will provide the best steering feel to the drivers. This paper studied about the EPS control logic component module. A computer model in the loop system was used to predict the steering effort/feel while tuning the control logic parameters. This research used Matlab Simulink for control logic and 27 degree of freedom vehicle model, CarSim software. Then the steering effort results were evaluated with the vehicle experimental data.