Its quite simple,with the vehicle off remove the 3-bar map sensor on top of the manifold and replace it with the original 2-bar map sensor,after that go inside your vehicle and make sure everything is off such as radio,wipers,a/c,etc,and then press the push button start button twice which will enable ignition mode,after that plug your programmer inside the obd port and follow the promts and make certain you select stock tune,hope this helps any and pics below of exact location of the map sensor exchange,best of luck and may the force be with you. Z