Some Subaru BRZ owners report experiencing stalling issues after about 30 minutes of driving, which can be attributed to various factors. Commonly, fuel-related problems, such as bad gas or water in the gas tank, may hinder proper engine firing. Additionally, inadequate maintenance can lead to stalling, with issues stemming from a dirty air filter, a faulty fuel pump, clogged fuel injectors, a dirty throttle body, or a malfunctioning mass airflow sensor. In rare cases, some owners have linked stalling to ECU mapping problems, which can be rectified by re-flashing the ECU. To effectively address these stalling concerns, it is recommended that owners consult with a professional mechanic for a thorough diagnosis and resolution.
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