Would a bad speed sensor affect transmission function on a 1991 dodge shadow?

Yes, a faulty speed sensor can affect the transmission function in a 1991 Dodge Shadow. The speed sensor provides critical data to the transmission control module, which helps regulate shifting and performance. If the sensor is malfunctioning, it can lead to erratic shifting, poor performance, or even transmission failure. Therefore, addressing any issues with the speed sensor is important for maintaining proper transmission operation.