O2 sensor wiring help.

[Latitude777]

Hey Can anyone help me?

My 92 4runner lost the 02 sensor recently when it got hooked up with some wire that also decided to hook itself around the tail shaft and other parts of the car.
When i went to replace it however found there were only 2 ways to go.. $350+ for an original toyota one or $135 for the generic universal one. Obviousley i bought the toyota one (NOT)!

Heres my trouble, when i ripped off the original i also lost the plugs and all wires etc and after reading my Haynes its not all that much clearer how i need to wire this thing up.
Haynes shows me 4 wires.. each labelled:
W-B = +B I translated white black wire to a heat wire
BR = E1 i translated to Brown sensor ground wire
P-G = HT i translated to the other heat wire
B = OX i translated to the signal ecu wire..

Only that the car actually has a black wire a brown wire a pink/green and a white/red wire...

Now i have to match them up with my O2 sensor which is pretty basically
Blue - signal to ecu
White- sensor ground
black - heat not polarity dependant
black - heat not polarity dependant


Can anyone clear this up for me?? My car went from getting 450km's per tank to 330 kms per tank of fuel.... OUCH!

[thrashlux]

car --------- sensor

blk = blu
brn = wht
wht/blk= blk
Pnk/grn = blk

[Latitude777]

Legend mate. That's what I was thinking. Thanks.

[Latitude777]

Just to confirm.. Everythings running sweet now. Fuel efficiency is back.. Well.. as much as it can be back for a 3.0 V6 4runner!
Seriously though im back to getting 450-500kms from a tank.. thanks for your help.

[thrashlux]

great to hear it is all running well
another trick is to make sure all your connections are well sealed or your joy will be short lived as water = corrosion
make a ball of sickaflex over all your joints

[Latitude777]

Yeah I ended up getting a good quality water proof plug for connection so should be pretty well covered! Thanks again!