I have a 91 hatch with a b16A the car was converted to obd 1. I just finished putting a clutch and flywheel in. I start the car and the check engine light is on. I jump the 2 pin connector on the passenger side underdash to pull the codes and i get nothing. The light comes on when you first turn the key on and then goes out. I was thinking the ecu may be trying to relearn information. I dont know too much about the obd 1 ecus. If someone can help me or has had this problem. Any advice would be great thanks.