i bought a bosch universal type O2 sensor (rear/secondary) from napa for my civic (00 ex) it has 2 white wires, a grey wire, and a black wire, the directions in the box basically told me to connect the two white wires to my factory black wires, the factory white wire to the black wire, and the grey wire to the factory green wire. when i start the car i immediately get CEL...im clueless, could they have sold me a primary O2 sensor that is unheated or ??? i get the CEL when its cold and at running temperature when i turn the car off and back on. any tips would be appreciated

thanks,
eric

 

bump