I put a 93 obd1 b18a1 into a 88 crx si and converted the car to obd1. It cranks but wont start, the main relay is fine, fuses are fine, the grounds are fine, timing is fine, i got spark and fuel. Im pretty sure the ecu is good also because the integra was my daily driver before i pulled the motor. However on the main relay harness pin 1 and pin 4 do not get power. When we tried to start it on starting fluid it shot flames out of the intake manifold. Ive asked around and i think it is the injector timing. I think it is the rywire obd0-obd1 conversion harness... maybe the 89-91's are slightly different than the 88's. im hoping i can just swap a couple wires and fix it, if anybody has any thoughts please help. thanks.