How do I install my air fuel ratio in my 240sx?

[thepusher240sx]

How do I install my autometer air fuel ratio to my 1995 240sx....I already hooked up the power and grounded it....now i need to know where exactly and specifically where do i connect the purple wire....can someone please help me out. I'd really appreciate it:rolleyes:

[Warwick5s]

i'm almost 100% sure it taps into the o2 sensor.

[thepusher240sx]

i figured it out by trial and error with all the white wire in my ecm since i couldn't find which one was #46 cuz they were not labeled but i got it now. :p