This is the Catalytic Converter Warning Symbol. The image, which looks like flames or wavy lines rising from a pipe, indicates an overheated, damaged or malfunctioning catalytic converter. The converter is vital to the proper operation of the engine, so some vehicles may reduce the engine’s power automatically. And of course, it will be very hot. The vehicle will require service immediately.
In newer vehicles, the sensors reading the catalytic converter trigger the Check Engine Light, one of hundreds of functions covered by the that particular warning symbol.
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