The C1140 Code is included with the manufacturer of the car engine and if you want to solve the car engine. You need to depends on the manufacturer meaning. The general meaning of the code provides common information what match with all brands of the car. The common meaning of the code is not helpful for solving the car engine. The general meaning of the code is found online. You have nothing to worry with it. The C1140 OBD2 reports a sensor problem, extra of the sensor is unlikely to resolution the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be triggered by the cabling to the sensor itself.