i have just fitted my new turbo to my car (92 saph cosworth 4x4) ,no more smoke belting out thankfully , now the sensor which screws in the top of the turbo which i think is the lamda sensor ? all the wires are uncovered and nearly touching each other so i have disconnected it and just using it to plug the the hole , the question is what does it do and will it be harmful to run the car with it disconnected ? thanks again for your help.