either odb-0 to odb-1 or 2?

hatch an i baught a d16y5 engine.Im not sure what harness i need to get so let me know an where to get them asap an wheres a good price to get a p28 ecu thanx

its a 91 dx hatch

you should convert to obd1, get a p28ecu like you said, you can use the obd2 injectors and dist for the obd1. you just need to get a obd1 4 wire o2 sensor. and since your car is a dx, you need to do the dpfi to mpfi conversion.

just google and you can find a site taht sells the conversion harness, anything else you need, just look on ebay