[marcd]

i have my lean cut off switch for my nitrous all hooked up exept for 1 wire. the purple one that goes to the 02 sencer. when i looked under the car there are four wires from each 02 witch one do i connect it too? or witch one is the sending wire?

[marcd]

no one knows

[00silvergt]

Look at the picture of the o2 plugs. Ours should be the same as the 96-97. I'm not sure if that helps you or not.

[cliffyk]

On the driver's side front sensor the sensor signal+ will be the red/light green wire, on the passenger side front sensor it will be gray/light green--with OEM sensors.

With most all aftermarket sensors the two white wires are the heater power, the gray wire is sensor signal ground, and the black wire is the sensor signal+...

[marcd]

i figured it out it was the black wire. there was a black wire a white wire and two gray wires. i think my o2s are stock

[cliffyk]

Originally Posted by marcd i figured it out it was the black wire. there was a black wire a white wire and two gray wires. i think my o2s are stock

Not with those colors, the OEM sensors always have pretty color wires; with different color signal + wires at each sensor...