i have got a part number off scoobynet from previous posts , however when they showed me the sensor today at halfords it had only one black wire coming from it .part number 180398

The exisitng sensor has 3 wires any clues to help me.

Are there varying types , i think it was made by hotwire , do I need to ask for a specific type model , when i asked for an impreza they said they didnt stock it .

any help appreciated as the price is low in comparison to main dealer

lumby

 

Yea mate, I posted details of my halfords buy. As you say, they don't list Subaru, this is only because they don't have a loom adaptor to suit.
If you ask for a 3 wire Oxygen sensor (sometimes you get a blank look when you say lamda ) You then need a bit connector strip to fit the plug off your old sensor.
On the 3 wire IIRC the two whites are the heater + - and the black is the signal. Or was it the other way ?? Anyway the single colour is the signal, the heater is insulated from earth so the + - connections are not polarity sensitive.

 

thanks CC i will try them again on saturday , where they all under the one part number ??

Can you remember

cheers

 

Sensor for my 99my Genuine Subaru part (actually Bosch)was £96.70 + vat Part No 22690AA320
JohnD

 

I think they all had different numbers. Price 49.99

 

Finally got hold of three wire lamba sensor , it has 3 wires two white and one black.

the original connector has three wires
one red ,one black and on white , i need to splice it and join it to the new sensor, can anyone help me with which wire connects to which wire ? ie orginal to new

thnaks

Help appreciated

 

when i fitted a 4 wire sensor i used a multimeter i found that 2 white wires were continous only 1 wire gave a resistance reading by putting the negative lead on the threads of the o2 sensor and the positive lead touching either one of the 2 remaining wires this then left me with one wire to connect process of elimination and it worked a treat.

 

The 2 white wires on the sensor are the heater wires, they connect to the red and black wires on the car loom.

The black wire on the oxygen sensor is the signal, it connects to the white wire on the car loom.

 

Thanks cosie convert that means i can now complete the job !