If you are talking about engine issues, a good first move is to get the engine management unit fault codes read.
Remember an apparent fault with a "sensor" could equally well be another issue - wiring or in the connection to the sensor. Its only a guide.
Why not post a followup question that gives a brief, objective and accurate description of the problem you are trying to solve. After all, we only have your assertion it is a sensor problem.
acp, June 2017