Subaru BRZ losing driving capacity and slowing down while pressing the gas pedal on Subaru BRZ

Some Subaru BRZ owners report experiencing a loss of driving capacity and a decrease in acceleration despite pressing the gas pedal. This issue may be attributed to a dirty throttle body, which can lead to poor engine performance and erratic idling, affecting the vehicle's response to accelerator movements. Additionally, some owners encounter problems related to faulty torque converters or broken valve springs, which can contribute to erratic engine performance and power loss. Furthermore, some drivers may notice that engine braking, occurring when they release the accelerator without braking, can create a vacuum in the cylinders, further slowing down the vehicle. To mitigate these issues, it is recommended that owners clean the throttle body for improved airflow and engine function, and have any faulty torque converters or valve springs inspected and replaced by a qualified mechanic. If problems persist, consulting a professional mechanic for a comprehensive diagnosis and necessary repairs is advised.