You should really have a serious diagnosis done to make sure the EGR sensor is your problem. Most likely it can be carbon build up in the sensor tubing. Otherwise, it should be a straightforward bolt-on job, you can use the new part for reference.
Usually located next to the air intake manifold, locate the sensor and remove the fastening screws. Unsure you have the right type of replacement sensor and attach using the above screws.
The easiest way to replace a Chrysler Sebring EGR sensor is to purchase the product online from an online aftermarket retailer and take it to a local car repair shop
Disconnect negative cable from auxiliary jumper terminal. Unplug the connectors from the MAP sensor and the intake air temp sensor. Remove the plenum support bracket bolt located rearward of the MAP sensor.