The Evap sens is a negitive thermistor [ meaning as temp goes up, ohms go down].
So , for testing, you have to compare your ohm reading to a temp chart .
To simplify this , if you take the termistor out and get it to a stable room temp of 20C/68F, it should read between 11.5 and 13.5 K ohms to be ballpark.

However, if the sensors value ever get LESS than 2.5 K ohm [ which is your case ] , then the Control unit sees this as a shorted sensor and automatically shuts down the compressor after approx. 2 min. It will then not restart the compressor until the engine has been shut off and restarted .. but this cycle just start all over again, as your complaint states

so, sensor change should rectify this short cycling problem.
You may want to do the temp/oms test anyway...