O2 Sensor

[rad100]

hey guys,

got this o2 sensor, i think its a bosch unit? number on it says H3P1.

this is how it compares to the nissan plug (rb25) note different amount of wires.

how do i wire it up?

this is what i thought...

Nissan o2 sensor plug and o2 sensor with 2 white 1 grey and 1 black wire. I'm guessing black to black. Grey to red and booth whites to the white?

cheers all...

[rad100]

so i have been searching and come across this..

so im guessing,

white (heater) to heater on plug

white (heater) to heater on plug

black (signal) to signal on plug

then grey to chassis ground

any thoughts?

[rad100]

any got any idea?

[Moodles2]

Sure it's a RB25 plug? Red, white & black wires usually indicates it takes a Titania sensor (only R32 GTRs out of all the skylines had these type). While the red doubles as a heater (+) and signal reference wire (in) and white is a heater (-) whereas Zirconia sensors it doesn't matter which way both white heater wires go. If I recall correctly there's a chassis ground near the passenger strut tower (R32 GTRs at least) you could use to ground it.