welcome to Mr Italy to USA. (texas)
you have flooding, the EGR is the minor part wrong, if it closes its ok.
first make sure the single injector does not leak just as the moment of key off.
air horn on the top of the throttle body can be left off (removed) to look and test all this and watch it live.
the o-ring pair on the injector sides (removed) can crack this old.
the car has simple EGR, easier to clean , those paths, and new valve or clean the old one.
fuel there raw is not normaL, UNLESS ENGINE CRAnKING OVER AND ALL 4 SPARK PLUGS REMOVED (WIRES)
you have flooding, the EGR is the minor part wrong, if it closes its ok.
first make sure the single injector does not leak just as the moment of key off.
air horn on the top of the throttle body can be left off (removed) to look and test all this and watch it live.
the o-ring pair on the injector sides (removed) can crack this old.
the car has simple EGR, easier to clean , those paths, and new valve or clean the old one.
fuel there raw is not normaL, UNLESS ENGINE CRAnKING OVER AND ALL 4 SPARK PLUGS REMOVED (WIRES)
http://www.fixkick.com