management light on

whilst driving home the nite engine management light came on,noticed temp gauge was sitting at 70,then slowly went up 2 90,had my suspicions already,got home plugged in vag com came up with code 16502,yeah the good old coolant temp sensor fault,checked the wiring all seems fine,noticed its still the black one fitted,so a trip 2 skoda for a new modified green 1,hope this cures the fault.its maybye conincidence but i just fitted timing belt kit,water pump,maybye me being paranoid.