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My engine light came on and I went to a automotive electrician and P00551 code came on. So I need to replace my 02 oxygen sensor Bank 2 Sensor 1. I bought the part thinking it would be easy to spot but after looking around I can’t seem to locate it. Do I need to go from the bottom or top? Does anyone have a diagram, or location of it?
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2009 XF Supercharged 4.2l v8
Last edited by GGG; Jul 12, 2018 at 02:31 AM.
Reason: Add vehicle details
I've moved your question from X260 (2015 onwards) to X250(2001-2015) forum. Members here with the same model will be able to help.
Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.
My engine light came on and I went to a automotive electrician and P00551 code came on. So I need to replace my 02 oxygen sensor Bank 2 Sensor 1. I bought the part thinking it would be easy to spot but after looking around I can’t seem to locate it. Do I need to go from the bottom or top? Does anyone have a diagram, or location of it?
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2009 XF Supercharged 4.2l v8
Well with the 5.0 all is done from the bottom, and it's not for the faint of heart. But from the diagram it looks like the 4.2 sensors are much easier to get to. 1 in each cat (Upstream) and 1 just before they go under the center of the car (Downstream) each side.
Last edited by Bigg Will; Jul 12, 2018 at 04:05 AM.
My engine light came on and I went to a automotive electrician and P00551 code came on. So I need to replace my 02 oxygen sensor Bank 2 Sensor 1. I bought the part thinking it would be easy to spot but after looking around I can’t seem to locate it. Do I need to go from the bottom or top? Does anyone have a diagram, or location of it?
________________________
2009 XF Supercharged 4.2l v8
try looking under your car but go on some ramps and block your back tiers you need to remove the cover under your ,look up and should find it the orther one right down on the same pipe dont know what bank trying learn that 2.
Not sure on the 4.2, but on my 5.0 I had to remove the cats to get to the upstream sensor. There just isn't room to get to it with the exhaust in place. The only way to do that is from under the car.
Yes I have worked on both and the 5.0L engine is MUCH more difficult to work on the O2 sensors. Like vfrman posted above I only got the first O2 sensor out after removing the cat. That's not all that easy either! The dang exhaust studs were rusted pretty good and I live in a salt free area. Plus again just no access for tools or your hands.
I finally got the cat out with the stud and one nut still attached. On the bench I used my torch and got it red hot before I could slowly work the nut and then the stud to get everything free.
If you need to replace the studs and nuts. I ordered one set as at the time it looked like I would need to cut them off the car.
Stud is about $5 and the nut is about $4. Common parts and easy to find. I was not able to find a generic stud and bolt as there are a lot of those out there.
The listing above says SS nut but what I got looks to be regular steel?
On the 4.2L I changed them all without removing any exhaust parts.
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Need location of oxygen sensor
