Ok the car is a cx but has a vx block with y8 head and a virgin p28, thats why it has a 1 wire. I have a 4 wire to install, i just wanna know if thats one of the reasons it's running rich/sputtering alil and when vtec engages it boggs. I need pins for the ecu to run the O2wires i have the wrong ones I think. thanks for all the info guys greatly appreciated!!