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I need to replace the Oxygen Sensors in my 1992 XJS V12 as I believe the left one (driver's side) is definitely shot, so might as well replace both.
I also believe what I have on are wrong as there are 4 wires coming out of the sensors where as only 3 places they can connect to. In fact the fourth wire has been cut off.
Also both sensors have the wires twisted to join with the wires of the connectors on the car !
Below are a couple of photos of the Bosch ones that I now have. Both photos are of the same one before and after removal of the heat deflector.
I tried to remove it today but was unable to. Threw some WD 40 and see if I succeed tomorrow otherwise will try the heating way.
One thing that baffled me is the way the one on the driver's side is installed, it is so close to the body that the wires are squashed by the heat deflector which is well tight onto the body.
The other side has no issues, quite a bit of space around the sensor.
Is this how it is or somewhere along the life time of the car the exhaust pipe broke or was replaced and welded wrongly?
Anyway, can someone please guide me to the correct part numbers and source, preferably from UK as it is closer to my country.
Some part numbers are Bosch 13032 or Denso 2343048, maybe see if those are available locally? There should be 3 wires, 2 for the heater and 1 is the sensor.
On the ones you have, I suspect the fourth wire is for a ground, that was done on later sensors. The earlier sensors use the exhaust system itself as the ground and that's not as reliable as a wired ground when the exhaust gets rusty.
Here are SNG Barratt's listings: https://www.sngbarratt.com/English/#...8-1f5ac8cf4d2a
Jaguar part number is DAC6907
To me, it looks like what they list as an aftermarket part is an NTK sensor. Those are made in Japan and high quality, they are also typically smaller than the Bosch sensors. I have had good luck with NTK sensors, they are were OEM suppliers to later Jaguar models. They are my preferred brand for O2 senors.
Some part numbers are Bosch 13032 or Denso 2343048, maybe see if those are available locally? There should be 3 wires, 2 for the heater and 1 is the sensor.
On the ones you have, I suspect the fourth wire is for a ground, that was done on later sensors. The earlier sensors use the exhaust system itself as the ground and that's not as reliable as a wired ground when the exhaust gets rusty.
Here are SNG Barratt's listings: https://www.sngbarratt.com/English/#...8-1f5ac8cf4d2a
Jaguar part number is DAC6907
To me, it looks like what they list as an aftermarket part is an NTK sensor. Those are made in Japan and high quality, they are also typically smaller than the Bosch sensors. I have had good luck with NTK sensors, they are were OEM suppliers to later Jaguar models. They are my preferred brand for O2 senors.
Thank you Jagboi64 for the info provided.
I tried locating them locally but without any luck so will go for the NTK sensors as listed by Barratt's.
I have imported parts from them before so should be no issues there.
Hello again.
So I ordered the sensors from from Barrats and got them a couple of weeks ago, but they were not Japanese NTK, made in taiwan and not branded (photo 1 below)??
Hope they are of good quality, but as you had mentioned, they are a bit shorter (photo2 below) which suits my purposes as the driver's side sensor was touching the exhaust heat shield.
The old sensors looked pretty beat up and not sure if they were working at all.
I had a tough job removing the old ones and had to use heat to get them to budge (photo3), but as soon as they did, I would squirt WD40 and swing them clockwise and anticlockwise whilst squirting more WD40 in order not to damage the threads. That worked well.
Once removed, I used my circular wire brush that I use to clean the inside of the battery terminals, to clean the threads before reinstalling the new ones.
I then directed the wires and kept them snug to the body and as far away as possible from the exhaust pipe, securing them with plastic locking straps and connected them.
After running the engine, the "Check Engine" light is still there although I tried resetting it using the battery terminal out for a while procedure as well as temporarily earthing the purple wire which is covered by the passenger's foot well as indicated by one member, maybe Greg in France (photo 4). What else should I look for to get rid of the check engine light?
On a separate note, having now new CO sensors, will the car require re tuning checking the CO2 ?
No need for tuning, the sensors will start working once they get hot.
Usually disconnecting the battery will clear the check engine light. It may come back again if the problem isn't cleared, can you tell what the code is? I have a later car, so am not sure how to read the codes on yours.
No need for tuning, the sensors will start working once they get hot.
Usually disconnecting the battery will clear the check engine light. It may come back again if the problem isn't cleared, can you tell what the code is? I have a later car, so am not sure how to read the codes on yours.
Hello and thanks for your comments.
When you ask about the code, are you referring to a code as in a scanner?
I was not aware that this car can accept a scanner unless there is a special one.
My car is a 1992 model.
Kindly enlighten me.
Hello and thanks for your comments.
When you ask about the code, are you referring to a code as in a scanner?
I was not aware that this car can accept a scanner unless there is a special one.
My car is a 1992 model.
Kindly enlighten me.
Many thanks
I don't know about the 1992 model, but my 1994 car with the LCD display trip computer will display any codes wit the ignition turned on and the car not started. The earlier trip computer with the green display cannot do this.
Part number and source Oxygen Sensors
