can you replace the motor in a 2000 ford escort with the 2.0L single over head cam with out changing the wiring and ecm for the vehicle?

Are you asking if a 2.0 L engine can be replaced with a 2.0 L engine? If so, "Yes" ... of course. I feel that I don't understand the question.

yea it should work we took a 2.0 from a 99 mercury escort or wat ever its called, and put it in a 98 ford escort