I have already changed the right front wheel speed sensor abs light is still on

A quality scan tool - that’s ABS capable and has live sensor data - will make short work of determining exactly which wheel speed sensor is failing - during test drive.

yes i have cleared the code 2 times it still came up CO221 but I can't find any breaks in the harness any where I cleared it 1 more time as we speak lifted all the wheels off the ground put it in 4 wheel drive and it hasn't came back on but i'm just letting it idle if its still bad will this bring it back up i also checked the connection it ran for about 20 minutes

IF a fault is still present > *Driving* the vehicle will most likely cause the code to return - - turning - stopping .. etc, has major influence on wiring and connector .. Which I suspect is the problem. Also - ‘sometimes’ - a replacement sensor will be just a tad longer and actually contact the reluctor inside the bearing - damaging the tip of the sensor. *DRIVE* the vehicle to force any trouble codes to set!

i did and it returned but this sensor goes around the back side you have to take off the hub assembly just to get it off when you replace the new sensor it has stops to keep it from going to far code CO221 says right front Antilock brake system channel in release too long. noise stops as soon as light comes back on

C0221: Possible causes : Faulty Right Front Speed Sensor - Right Front Speed Sensor harness is open or shorted - Right Front Speed Sensor circuit poor electrical connection - Faulty EBCM Read more: http://www.autocodes.com/c0221_chevrolet.html (Possibly damaged sensor) Good luck with it!