My (new to me) 2011 Astra Excite 1.4L petrol failed to start on a cold morning recently. The RAC guy flagged the coolant sensor, as the gauge read 60c with a cold engine and ambient <10c (Also had code P0119). I've got to get it to the garage 13 miles (~20 minute drive) away for them to look at it. If I disconnect the sensor would it be alright to drive it the 13 miles @ a max of 60mph?