oxygen sensor
 

I am installing an air fuel ratio meter....in my 84 928 S, i have located the leads to the oxygen sensor...two wire connector--the heater wire? and thick green wire---signal wire to computer? i believe i should tap into the green wire..BUT, i am getting no power to any wire, with key turned on. ( engine not running) PLUS the green connector was broken and disconnected too when i found it!!! can anyone shed some light on this dilemma? thanks JIM:confused:

Its good to lay out all the details of what you are installing, as it may have issues that are known. Which meter, sensor, etc.