will a 1997 ranger 2.3 engine run correctly in a 2001 ranger 2.3 or is the sensors/computer different ?

 

If the engine in your 2001 is the DOHC 2.3 Duratec engine (143 CID), you are dealing with two different engines. The 2.3 SOHC Lima engine (140 CID) is a completely different engine family. Early 2001 models had the 2.5 SOHC Lima engine and may make a swap. I'm not sure about emission systems which would result in different sensors compared to the 1997 2.3.

 

The computer, harness and sensors would all be different on the 2.3 dohc duratec.

 

How hard would it be to install a 2.7L V-6 twin-turbo diesel in place of a gas engine?