injectors are same and use bosch connectors
injector harness for 84-85 is different from 86-87 , in orientation and what connectors are used where it connects to main harness
the 84 was an early design bosch injector connector as individual fuel injectors were relatively new , they need to have the metal clip removed to get off
the 86-87 used a redesigned push to release connector that expanded the wire retainer when pushed in