What problems can a bad air temp sensor cause?

A faulty air temperature sensor can lead to inaccurate readings, which may cause the engine control unit (ECU) to miscalculate fuel injection and ignition timing. This can result in poor engine performance, reduced fuel efficiency, and increased emissions. Additionally, it may trigger warning lights on the dashboard and lead to potential engine overheating or stalling issues. Ultimately, a malfunctioning sensor can compromise overall vehicle reliability and safety.