What does the Mazda P2096 trouble code mean?

[Young]

P2096 trouble code, applicable to all automobile manufacturers, means the post-catalyst fuel trim system is too lean. Below is a detailed introduction about the catalytic converter and the trouble code: 1. Catalytic Converter: The catalytic converter is an exhaust purification device that uses a catalyst to convert harmful gases in the exhaust into harmless gases for the human body. It is generally located before the muffler in the exhaust pipe. A too rich air-fuel ratio means excessive fuel delivery, while a too lean air-fuel ratio means insufficient fuel delivery. 2. Others: Whenever a car fault is resolved, it is necessary to clear the trouble code. When clearing the code, it is essential to follow the specified method for clearing the fault code as prescribed by the vehicle model. Do not arbitrarily use the method of disconnecting the battery's negative terminal to clear the car's trouble code.