when i bought my car the primary 02 sensor was clipped.....the wires are green, white and two black ones.....i bought a new bosch 4 wire with two whites a black and a grey wire....what wire goes to what???? i have been serching all over the web and cant find anything.....thanks in advance

 

By the way it's a b16a2 motor with a obd1 jumper to a chipped p28..,,do I even need a o2 sensor....the second one isn't hooked up eather....

 

[green to gray ] [ black to white ] and [ white to black]. On a chipped p28 if 02 sensors are disabled u dont need either sensors. thats only for emissions for obd2 which is needed with a obd2 ecu if the car is a 96 + car

 

Thanks bud..... It's all taken care of..