i got bored..so i decided what kind of ecu my hatch is running...and it's an obd2 b18b...the whole harness actually....from ecu to engine harness...including the dizzy...so in other hands..they swap the motor in using the whole obd2 wire harness...any way i can turn my car back to obd1? besides using the jumper harness....ohh yeah...my car can't idle that great..it has a weird idle..sounds like it's going to die..and check engine light is on..

 

get a complete new harness from an si that matches your year. then convert to obd1. or since your car is running right now, source down the complete car harness from an si, and get your hands on an obd1 engine harness and send both engine harnesses to rywire.