Hey guys on my 89 hatch im running obd0 with a ls ecu and ls dizzy but i dont have a o2 sensor hooked up and im gonna assume thats why the check engine lights on...which would be easier wire up a obd0 o2 sensor or go obd1 and wire up a 4 wire o2 sensor?

 

You have to convert the whole car over to obd1 if you want to run the 4 wire o2.

Just buy an o2 sensor for obd0 and just plug it into the existing wiring which would be the white wire on the trans.

 

YEA ITS THE SENSOR SAM THING IS HAPPENING TO MINE DID A B16 SWAP AND THE SENSOR IWAS BROKEN AND ENGINE LIGHT SHOWS UP