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O2 sensors triggered, high emissions - changed sensors but..

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Old Jun 20, 2025 | 09:47 PM
  #11  
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Originally Posted by asheligh
perhaps a blockage in the fuel lines? That could make sense.. what I’m concerned about is replacing the sensor for the sensor not to be the problem

how would such a blockage be detected or cleared?
I do not think this is something you should do yourself unless you have worked with fuel injection systems in the past. You should take the car to a reputable mechanic to troubleshoot and correct the problem.
 
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Old Jun 21, 2025 | 08:23 AM
  #12  
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Originally Posted by flybd5
I do not think this is something you should do yourself unless you have worked with fuel injection systems in the past. You should take the car to a reputable mechanic to troubleshoot and correct the problem.
right now im trouble shooting on my own, trust me if there was a reputable shop to send the car to I wouldn’t be doing what I’m doing right now. I live in Costa Rica where even the agency doesn’t really have a clue or couldn’t be bothered. They know that the time it would take them to figure this out wouldn’t be worth the value of the car.

my (ex) mechanic as you can see didn’t detect any of the things I’ve found out thanks to this thread. A friend gifted me a wonderful scanner which I’m learning to use. I have an amazing auto electrician who is helping me diagnose. I have about 4 mechanics who are all a little dubious about working on this car but if I tell them exactly what needs to be done and source the part (which in Costa Rica is time consuming and costly) they are more comfortable. I even find them the video.

What im looking for here are pointers from people who have taken their cars in, had experience or even worked on them themselves. If I need to have the injectors cleaned.. thats easy, I can drop the car off with clear instructions to clean the injectors.

how would I identify a blockage in the fuel lines?

here there is no such thing as a one stop shop. I need to figure out the problem and take it to the correct person. If its someone specialist I probably wont find them in my town and may have to drive hours, but if I know what to look for and ask for I can get it done.

this car was sold to me because the agency couldn’t figure out what was wrong with it. Turns out it needed a new gearbox which I had replaced. Please note that I myself didn’t replace the gearbox. I simply troubleshooted to the point where I was able to get the work done.

while I appreciate your concern trust me when I say this, the deepest im getting my hands dirty is rummaging in the fuse box. I’m hardly qualified to troubleshoot hence my questions, never mind changing sensors and whipping out injectors.

if you can send me in the right direction I’d appreciate it.
 
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Old Jun 21, 2025 | 05:51 PM
  #13  
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Originally Posted by asheligh
right now im trouble shooting on my own, trust me if there was a reputable shop to send the car to I wouldn’t be doing what I’m doing right now. I live in Costa Rica where even the agency doesn’t really have a clue or couldn’t be bothered. They know that the time it would take them to figure this out wouldn’t be worth the value of the car.

my (ex) mechanic as you can see didn’t detect any of the things I’ve found out thanks to this thread. A friend gifted me a wonderful scanner which I’m learning to use. I have an amazing auto electrician who is helping me diagnose. I have about 4 mechanics who are all a little dubious about working on this car but if I tell them exactly what needs to be done and source the part (which in Costa Rica is time consuming and costly) they are more comfortable. I even find them the video.

What im looking for here are pointers from people who have taken their cars in, had experience or even worked on them themselves. If I need to have the injectors cleaned.. thats easy, I can drop the car off with clear instructions to clean the injectors.

how would I identify a blockage in the fuel lines?

here there is no such thing as a one stop shop. I need to figure out the problem and take it to the correct person. If its someone specialist I probably wont find them in my town and may have to drive hours, but if I know what to look for and ask for I can get it done.

this car was sold to me because the agency couldn’t figure out what was wrong with it. Turns out it needed a new gearbox which I had replaced. Please note that I myself didn’t replace the gearbox. I simply troubleshooted to the point where I was able to get the work done.

while I appreciate your concern trust me when I say this, the deepest im getting my hands dirty is rummaging in the fuse box. I’m hardly qualified to troubleshoot hence my questions, never mind changing sensors and whipping out injectors.

if you can send me in the right direction I’d appreciate it.
I wish I could be of more help. The people here who strive to help fellow owners are just like you, except we've banged our heads against the wall more often and managed to collect useful answers to many problems. Some of us have more advanced experience. I was a helicopter avionics and electrical systems technician in the Marine Corps. But we still have our limits.

One suggestion I can make is to not look for Land Rover mechanics and instead look for a Volvo mechanic. The engine on the 6 cylinder gas powered LR2 is the same as the ones used on these Volvo cars.

Nevertheless, there is hope. The Volvo SI6 engine was also used in the following Volvo car models:
  • 2011–2014 Volvo XC90 (badged as XC90 3.2)
  • 2011–2014 Volvo S80 II (badged as S80 3.2)
  • 2011–2014 Volvo V70 III (badged as V70 3.2)
  • 2011–2015 Volvo XC70 II (badged as XC70 3.2)
  • 2011–2014 Volvo XC60 (badged as XC60 3.2)
It's also worth noting that the LR2 is built on the same Volvo platform as the Volvo XC60 and uses the same inline-6 petrol engine (without the optional turbo).

If you can find someone who has experience working on these Volvo cars listed above, they will immediately recognize the engine on your LR2 and will likely be able to help.

 
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Old Jun 21, 2025 | 09:12 PM
  #14  
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Originally Posted by flybd5

One suggestion I can make is to not look for Land Rover mechanics and instead look for a Volvo mechanic. The engine on the 6 cylinder gas powered LR2 is the same as the ones used on these Volvo cars.

Nevertheless, there is hope. The Volvo SI6 engine was also used in the following Volvo car models:
  • 2011–2014 Volvo XC90 (badged as XC90 3.2)
  • 2011–2014 Volvo S80 II (badged as S80 3.2)
  • 2011–2014 Volvo V70 III (badged as V70 3.2)
  • 2011–2015 Volvo XC70 II (badged as XC70 3.2)
  • 2011–2014 Volvo XC60 (badged as XC60 3.2)
It's also worth noting that the LR2 is built on the same Volvo platform as the Volvo XC60 and uses the same inline-6 petrol engine (without the optional turbo).

If you can find someone who has experience working on these Volvo cars listed above, they will immediately recognize the engine on your LR2 and will likely be able to help.
thank you this is very helpful info. I discovered this about Volvo already and I have teamed up with a friend who has 3 of these cars. I have his XC90 3.2 with me right now, we just had the fuel pressure sensor replaced in that one. Before it was replaced I checked that the pressure was correct and it had exactly the same trims. So next week I’m going to switch the sensor from the Volvo to the Land Rover to see if I get different readings. If I don’t then the problem is not with the sensor itself. Back to square one.

we had the o2 sensores switched in that car as well and both the Land Rover and Volvo have their manuals

its impossible to find a Volvo mechanic here either. What we do is we diagnose, find the parts, find the video and the mechanic does the work.

but my friend does have Volvo software so we’re a step ahead there. Thanks again for this input and totally appreciate all the help from everyone. I’ve learnt more than you can I anyone from just this thread.
 
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