This document discusses optimizing design parameters for effective molding of a gas sensor through mold flow simulation. It analyzes two trials of injection molding simulations to determine the optimal gate location, moldability, defects, and processing parameters. Trial 2 with parameters of 2 second fill time, 50°C mold temperature, 245°C melt temperature, and 55MPa injection pressure produced fewer sink marks, air traps, and weld lines than Trial 1. Trial 2 also had a faster cooling time of 8 seconds, making it the ideal design for molding the gas sensor part.