im swapping engines in my RX , my does not have curise but the one im puttin in does how do you take that off?and is the wiring harness the same?

 

if you don't want cruise, then just remove the actuator.

All FCs are prewired for cruise (except a few 86 models)

 

Use your throttle body or just take off the wire that goes to the tb pulley on the new motor. All cruise control is an extra cable running to the throttle body (ok not really, but thats what you need to take off ).