I put a 2005 2.7l engine in a 2002 sebring. It will crank but wont run. Did i miss something?
the 2005 engine came out of a wrecked car but still ran good before swap

 

yeah the cam shaft tone wheel is wrong and likely the fly wheel is also wrong 2002 and 2005 have different computer so different setups for cam and crank sensors

 

I am not 100% sure on the 2.7 but I do have experience with the 3.5
Electronics and other parts such as tone wheel (cam drive) flex plate/flywheel must match the car electronics and computer they are installed in.
Sensors, engine wire harness and in some cases the alternator all need to be verified.