well first of all, you can till if its obd by looking at the vtec solenoid. obd1 has 1, obd2 has 2 due to its dual stage vtec.
what motor did you get these parts from? parts i suggest would be off a 93-95 civic vx. timming belt/water pump/ thermo/ etc. i just got my done.

referring to above, if it was obd1, wrong ecu first of all. you need atleast a p28.
double check wiring if you had to wire in vtec.

if it was obd2, check your ecu, could have burnt something inside, try swaping it out with a friend.

did you have any cell before the trouble?