I have an lly recently tuned w a 5 stage efi live. My throttle would previously become rock hard to push down upon getting back into it while going down the road. Since having the tune installed this is happening more frequently. I will be riding down the road, after letting off the pedal and getting back on it will become stiff as a rock , almost impossible to push down. I have to begin letting on and off the pedal until it becomes loose again. Any ideas what this could be ?