Will A OBD2 Chevy Engine Work In A OBD1 Turck?

What things need to be done to make a OBD2 chevy engine work with a OBD1 chevy truck?

Where Is The Fuel Pump Relay Located On A 1988 Gmc K1500

is there a fuel pump relay or a fuse that operates the fuel pump if so where are they located.