The knob i think is the choke is disconnected. I am not sure what it is really. Its a black knob with a white letter "T" on it in under the HVAC controls. The cable goes into the engine and ends. I think it the choke cuz there is no other knob for the choke. Idk if it has a auto choke or not. So the question is where on the carb do i attach it? it doesn't look any thing is missing. Thanks