Electronic engine control technology stands as a pivotal advancement in modern engine development. The Engine Control Unit (ECU) retrieves operational data from the engine to precisely regulate ignition timing, fuel injection, air–fuel ratio, exhaust emissions, and more, based on signals from various sensors, particularly the crankshaft and camshaft position sensors. This research introduces a methodology for developing a simulation model to analyze the signal of crankshaft and camshaft position sensor in the Diesel D4EA engine using Matlab/Simulink. The waveform model is divided into several segments, each with distinctive parameters represented through sinusoidal, arcsine, and square wave functions to match the characteristic signals of the crankshaft and camshaft within one engine cycle. Both signals display synchronization within one engine cycle, when the crankshaft completes two revolutions, the camshaft completes one revolution during the experimental process. The model is validated through a comparison between simulated and real signals at various engine speeds, demonstrating high precision and reliability. The model is developed with the intention of replacing actual sensors to perform measurements and test the engine ECU in an offline condition, serving educational and research purposes.