Recently my primary oxygen sensor went out on me. OEM direct replacement is $200, so I'm saying forget that. I've been researching a bosch universal oxygen sensor that sells for $40. It has really good reviews but heres my problem, people who have used this product say that the color codes from that sensor do not match the crv colors so if anyone knows where I can get a diagram online that would be awesome or if you know off hand which color is for what wire, let me know thanks guys. My crv is a 03 ex.

 

green/white sensor. black black heater.

 

if the sensor thats currently on the car has 2 black wires, how do u know which one goes to the black wire on the replacement sensor?