Does a 2000 Chevy Malibu have the same engine as 2002 Malibu?

No, not necessarily. While there's overlap and some similarities, the 2000 and 2002 Chevy Malibu didn't have identical engine options across the board. The specific engine depends on the trim level and any optional packages chosen when the car was new. There were different engine sizes and types available for both model years. You'd need to check the vehicle identification number (VIN) of the specific cars to determine their exact engines.