While driving my Jeep when driving onto on-ramps.

While driving my jeep when driving onto on-ramps to highways at speeds around 45-55 mph my jeep decides to throw itself into limp mode and kill power and any possibility of acceleration. When you get the vehicle back on a straight path jumps out of limp mode and drives normal. I had the trans serviced and a governor solenoid replaced and same results ironically no codes come up. What could cause such an issue simply by turning at speed? Any ideas would be very helpful.