Will coolant temp sensors affect idle speed and cause engine to run rough 92 cabriolet?

Yes, coolant temperature sensors can affect idle speed and cause the engine to run rough in a 1992 Cabriolet. If the sensor is faulty, it may send incorrect temperature readings to the engine control unit, leading to improper air-fuel mixtures. This can result in an unstable idle and rough engine performance, as the engine may not be receiving the correct adjustments for temperature changes. Therefore, ensuring the coolant temperature sensor is functioning correctly is important for optimal engine performance.