I put 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.

 

bump

 

no clue someone should know thou

 

Check the wiring over again. make sure the distributor wires are all correct & connected. Double check the injector wiring and make sure the resistor box is connected properly. My money is on injector wiring. Also make sure the IACV is connected correct too

 

thanks ill check the distributor wiring again and im using obd1 injectors so no resistor box.

 

daily bump

 

Then why post?

make sure to go overthe dizzy wires, I also got a conversion from rywire too and the dizzy jumper from obd0 or obd1 vtec needed to be repined. Maybe that's what's wrong with yours.
Gl bro

 

preciate i got a day off tomorrow and im gonna check the dizzy. o and its a ls so no vtec. thinking about it would that matter for the conversion harness at all?

 

alrite so the distributor wiring is good they all match up and i got the larger white wire to the yellow/green.