Electric sensors in vehicles play essential roles in monitoring and controlling engine performance, emissions, and safety systems by transmitting real-time data to the engine control unit (ECU) or other modules. They include oxygen sensors for adjusting air-fuel mixture, throttle position sensors for regulating fuel injection, and temperature sensors for managing engine coolant levels. Speed sensors contribute to stability systems like ABS and TCS, while pressure sensors monitor fluid levels and pressures for proper vehicle operation. Regular maintenance and timely replacement of sensors are crucial to prevent performance issues and ensure reliable vehicle operation.