hey. i dont have a o2 sensor hooked up to my hatchback. is there any other place to hook up an a/f guage besides the o2 sensor? i just converted to obd1 and didnt do the 4 wire o2 sensor, i just didnt hook up anything. so is there any other place to hook up a a/f guage. thanks

 

Heres a hint, you NEED an o2 sensor. Especially to control the light show (af gauge).

 

Finish the conversion and hook up your 4-wire, if you want any driveability or gas mileage whatsoever. Get a wideband o2 if you want an A/F reading that will actually be of any help.