I have a 1990 civic hatch i bought it a week ago. i just found out it has a d16y8 with a integra ls ecu. it looks like it has the dx trans how is this possible. i would like to put a new engine in without messing with new wiring or mounts. i would just put a d16y8 in but cant find one. any help on what i could put in or where to find it. and yes i have been searching for days.

I think all D series trans/motors will bolt up to each other. As for a new motor, B16, B18, B20, NA, turbo, your call. research, find out what you want and what is realistic, then do it.

is the d16y8 a vtec cause any site with engines just say d16vtec and thats it sorry this is my first honda so it might be a stupid ?

Yes d16y8 is VTEC.

will a d15 vtech from a 92-95 drop right in with out anything

is there anything wrong with your existing engine? why do you want to change it?
If nothing's wrong with it, you should get a better ECU (P28, which is the ecu from a '92-'95 Si and EX) and get a conversion harness to change over to OBD1.

how is your vtec activated? curious LS ECU

i dont know how it works the car is messed up

I have a newly rebuilt D16Y8 with about 7000 miles on it and only want 700 dollars for I've put 2K into the engine....I just bought a H22A to put in mine so don't need the D16Y8 anymore... Just hit me up if you need to know anymore about the engine....