The problem started with Bank 1 upstream O2 sensor fail, changed sensor and it failed, 2nd new sensor failed within 10 miles, 3rd new sensor (Bosch OEM) also failed. Before diving into the wiring I swapped bank 1 and bank 2 upstream sensors. Happy days, the problem now showed bank 2 as failing and bank 1 being good. 4th new sensor was placed in bank 2 and cleared all faults and check engine light out. Life was great for 36 miles and then check engine light came on the the OBD2 showing bank 2 sensor fail. Fault codes are, Poo52, po131, po151, po134, and poo32. It may be nothing but I replaced a failed ECU a couple of months ago. I had the ECU flashed by a Jaguar dealership when changed.

 

Was Bosch the brand of the original sensor, and the ‘good’ one swapped from bank 2 to bank 1?
If so, replacement is the same model number?
Might also try a ‘hard reset’ (disconnect battery cables, touch together, and then replace). Had to do that to get a new temperature sensor accepted.

 

Is it "the sensors are failing" or is it "the sensors are working and showing the errors"? Hard to know without the complete codes.
One thing for certain, an '08, with 80,000+ mi... there is a high chance your original cats may be toast.

Life was not great in that 36 mi. The ECM was learning the characteristics following the clearing of the codes. It took 36 mi to discover that in fact there was a problem.

 

Hi Rlkessler19,

The engine management system in your 2008 XKR is from Denso, and all the original engine management sensors, including oxygen sensors, should have been made by Denso.

When you remove the "failed" oxygen sensors, do the tips exhibit signs of contamination, such a a white powdery coating? This could indicate, for example, coolant leaking into the combustion chambers due to failing head gaskets.

Your diagnostic trouble codes appear to be mostly electrical codes related to the sensor heater circuits and not sensor performance codes. Before replacing the sensors again, it would be prudent to follow the pinpoint tests in the Workshop Manual to rule out a problem with the wiring. It is also always worth the effort to clean the ground points associated with the engine management system.

Cheers,

Don

 

Since the problem followed the sensor, it’s probably not electrical. I was thinking the OE sensors might be Denso, but couldn’t find any solid proof, that’s why I asked what brand the original sensor was (and the working good one).
These cars are sensitive about their sensors.

 

I didn't swap them around again but I am thinking that is a what I need to do first. Depending on what happens I will try a complete reset. I will post results in a couple days.
Rick

 

I had not thought about the ECU taking time to figure out it didn't like the off brand sensor. Car has 112K so yes the sensors need to changed.
Thank you,
Rick

 

The sensors were the colour that you see on sparkplugs when the engine is running to rich. I did check all the wires and voltages when the problem started. I honestly do not remember what brand the the original sensor was but I am coming to believe that I need to get a denso sensor. I had not thought about the ECU taking time to decide that it did not like the off brand sensor.
Thank you
Rick

 

Thank you all for your advice and suggestions, before I could try any of the suggestions, a person who had been looking at the car showed up this afternoon with cash in hand. He said he wasn't worried about the O2 sensor problem as this was exactly the car that he had been looking for. He put the top down and drove off with in his new Jaguar XKR. I asked him to contact me and let me know what fixed the problem. If he does I will post the fix.

Rick

 

Not how it went down.
I was looking at several rag top roadsters. Had no idea what i would end up with, just wanted something to cruise and take on short road trips.
I bought car a week ago. While test driving the engine lite came on and you said, yeh bank 1 oxygen sensor is bad and needs to be replace, you had already ordered it and said you would change it out when it came in. You changed it out and cleared the code After i drove it for 36 miles the check engine lite came back on and i called you to.let you know. You said i will put this on the forum to see what responses you get. In the mean time i went to auto zone and they did a check for me and thats when the codes for both bank 1 and 2 o2 sensors being bad. When I talked to you, you where pushing fir me to take to jag to fix. I asked about splitting the cost and you said, you bought it, you've got it. I bought car believing what you said, just need to change out bank 2, 02 sensor. You ad for the sale of the vehicle said you had it fir 2 years and it was your daily driver and never had any issues with it.
I will take it to Jag and depending on what they tell me about the history of the codes and what it's going to take to fix it will let me know path forward.
No one pays $15000 for a car that has check engine lite issues.

 

 

 

Actually, you replaced sensor on bank 1.
Bank 2 had the problem
Jag will not work on vehicles older than 2010

 

OR, you need two new catalytic converters. They don't last forever, and if the car ever ran rich, they may have been damaged.

 

I wish my cars only cost $15K when I bought them.
And a couple of them needed $10k, after purchase.

 

Glad I don't take car buying tips from you

 

Epic self-burn???

 

LOL… you don’t know my livery. Nor realize it was still a bargain.