Our sensors trigger the same as airbag sensors, and are there to protect car accident and/or fire victims. They are meant to go off and saturate the engine and gas tank with a fire extinguishing foam. This happens when a car has a sudden extreme deceleration (a head-on collision).                                                                                                                                                                                                                                                                                             

 This diagram of an engine shows parts that have the potential to spark in an accident.

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