Finally, the MAP sensor of 2007 and later models is situated at the rear of the engine, and it is connected to the upper intake manifold via a vacuum hose Te disturbances of the vacuum hose feed back to the MAP sensor and alter the input of the ECM; models 2001 through 2006 do not have this sensor. First, remove the cable of one of the battery terminals, particularly, the negative terminal. Following this, unscrew the vacuum hose from a sensor, then the mounting screws as you pull the sensor of. When installing, do it the reverse of how it was removed.