on my 92 hatch 1.5 what pin or color wire is the o2 signle going to the ecu? i wanna put an air fuel gauge but rather tap to the ecu. or anyone know wich color to the o2 sensor if i have to go that route. also how about the tachometer wire behind the dash the goes to the cluster?

 

bump

 

white, pin 14 at ecu(cant remember which plug) or white at o2 unless its something other than 4 wire o2.
and tach is blue at tach test connector on drivers side strut tower. in a 2 pin blug by itsself with a rubber cap on it. i dont know about at the cluster. maybe some one else does.

 

http://technet.ff-squad.com/wiring.obd1.htm

 

thank you for the info fellas

 

Dont waste your time running an a/f gauge off of a stock narrow band o2 sensor.
It wont be accurate.

 

i hav ehad an autometer air/fuel gauge and volt gauge sitting in a box for ayear now i might aswell do somthing with it.