need help identifying stuff pics inside, please help

[rkwoos12]

hey guys i have some questions i still cant find the back up light switch plug on my engine wire harness i found two cut wires i don't know what they go to here's a pic

the wire is white and red and one brown wire with a blue and red wire i think. if any one knows what those wires are for please let me know. also i have a plug comming out of the wires that go to the injectors i dont know what it gose too either heres another pic.

also i think this engine is obd1 in my obd2 civic si what do you think?
here's some more pics

 

[eg6sir]

that intake manifold is definitely obd1.. not sure on the rest

 

[rkwoos12]

thats what i was thinking do you know what thos wires go to?
i searched for the past two days on the manual and cant find nothing on thos wires, witch makes me wonder if that engine harness is the stock si harness or not.

that intake manifold is definitely obd1.. not sure on the rest