o2 sensor

[xextremetibx]

i am installing an air/fuel gauge and i need to know what wire to tap on the first o2 senser, there are 2 white ones a black and a gray wire. I have a 2001 tib. Also this may sem like a dumb question but i know that i can tap the yellow wire on pin 12 but where is the ecu located? thanks

[xextremetibx]

forget about this post i figured it out. But if anyone else wants to know the signal wire is the gray one coming off the o2 sensor

[tibmeister]

how did you run the wire from the guage to the O2 sensor?

[xextremetibx]

the gauge came with wires coimng out of it and all i did was extend the wire that was for the reading out to the o2 sensor.