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2020 volvo s60 O2 sensor

Old Feb 24, 2025 | 03:14 PM
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Default 2020 volvo s60 O2 sensor

I am having trouble finding an O2 sensor, specifically (bank 1, sensor 2)!! If anyone knows anything please get back to me or message me thanks
 
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Old Feb 27, 2025 | 09:51 AM
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what engine does your car have? On the 4/5s there's only bank 1. on most cars there are two sensors - the upstream sensor 1 typically ahead of the cat and sensor 2 which is after the cat. On some volvos there are 3 sensors so Sensor 2 is the one in the middle... Check Youtube for vids. My question is why are you looking for sensor 2? What CEL code are you seeing? Your car seems pretty young to have a sensor issue so I'd be looking for something else like vacuum leaks, exhaust leaks, misfires, oil or coolant consumption that can cause the code in question and perhaps foul the sensor.
 
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Old Feb 28, 2025 | 11:49 AM
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Originally Posted by mt6127
what engine does your car have? On the 4/5s there's only bank 1. on most cars there are two sensors - the upstream sensor 1 typically ahead of the cat and sensor 2 which is after the cat. On some volvos there are 3 sensors so Sensor 2 is the one in the middle... Check Youtube for vids. My question is why are you looking for sensor 2? What CEL code are you seeing? Your car seems pretty young to have a sensor issue so I'd be looking for something else like vacuum leaks, exhaust leaks, misfires, oil or coolant consumption that can cause the code in question and perhaps foul the sensor.

it’s a 2020 Volvo s60 t5 momentum 2.0t 4 cylinder, I know nothing about Volvos and before I had gotten the car and it’s really hard to find anything on how to fix or locate specific Volvo parts
 
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Old Feb 28, 2025 | 11:50 AM
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Originally Posted by raygriego3434@icloud.com
it’s a 2020 Volvo s60 t5 momentum 2.0t 4 cylinder, I know nothing about Volvos and before I had gotten the car and it’s really hard to find anything on how to fix or locate specific Volvo parts

this was the code it gave me as well
 
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Old Feb 28, 2025 | 12:39 PM
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Originally Posted by raygriego3434@icloud.com
this was the code it gave me as well
Does this mean your first course of action will be to replace by code? (the rear sensor)

It's usually best to diagnose the real problem first. And It would be pretty unusual for a O2 sensor that young to be bad.

What happens when you erase the codes? How long does it take for them to come back? What do you plan to do about the missfire codes? Missfires will send too much unburnt fuel into the exhaust - and that's what the O2 sensors are trying to figure out. (meaning the rear sensor is doing it's job!)
 
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Old Feb 28, 2025 | 06:59 PM
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Originally Posted by hoonk
Does this mean your first course of action will be to replace by code? (the rear sensor)

It's usually best to diagnose the real problem first. And It would be pretty unusual for a O2 sensor that young to be bad.

What happens when you erase the codes? How long does it take for them to come back? What do you plan to do about the missfire codes? Missfires will send too much unburnt fuel into the exhaust - and that's what the O2 sensors are trying to figure out. (meaning the rear sensor is doing its job!)
read the code and it was giving me misfire in cylinder 1 and so I changed everything brand new spark plugs and ignition coils and the main thing is the o2 sensor I’m not sure if it’s because it’s not a Volvo sensor or what but I’ve read and gotten an answer from the Volvo here in town and he basically told me I can’t put any other aftermarket part other than oem Volvo parts or else the Volvo computer in the car will misread and throw everything off I guess .
 
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Old Mar 1, 2025 | 07:50 AM
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Originally Posted by raygriego3434@icloud.com
it was giving me misfire in cylinder 1 and so I changed everything brand new spark plugs and ignition coils

I guess
What's the compression? What brand spark plugs did you use? Does the misfire move when you swap coil and plug to a different cylinder? The O2 sensor just reports what's happening, as mentioned earlier it's not likely to be bad on such a young car. Especially if you have misfire codes - and the rear o2 sensor is NOT creating/contributing to those misfire codes. The rear sensor is just checking to make sure the Catalytic convertor and the front sensor are doing their jobs. It does not control the mixture in any manner shape or form.

As you are finding out "guessing" can get expensive. You might want to diagnose (or have someone else) diagnose first, solve problem next.
 

Last edited by hoonk; Mar 1, 2025 at 07:53 AM.
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Old Mar 1, 2025 | 02:53 PM
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Originally Posted by hoonk
What's the compression? What brand spark plugs did you use? Does the misfire move when you swap coil and plug to a different cylinder? The O2 sensor just reports what's happening, as mentioned earlier it's not likely to be bad on such a young car. Especially if you have misfire codes - and the rear o2 sensor is NOT creating/contributing to those misfire codes. The rear sensor is just checking to make sure the Catalytic convertor and the front sensor are doing their jobs. It does not control the mixture in any manner shape or form.

As you are finding out "guessing" can get expensive. You might want to diagnose (or have someone else) diagnose first, solve problem next.
yeah very understandable, I had bought this Volvo a year ago with about 75k miles on it, trust me it was a lot of work to begin with since the previous owner didn’t really keep up with the maintenance before so it’s kinda all on me now, but when I took out the spark plugs they were denso spark plugs, not sure if they’re good or what but when I taken out the first one it looked competently blown, I have a picture to show as well. in no way am I guessing, I’ve called around & like I’ve said before I’ve gotten many answers but I may need to get it fixed if I cannot do it myself

 
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Old Mar 1, 2025 | 04:41 PM
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Originally Posted by raygriego3434@icloud.com
when I removed the first one it looked competently blown,



OUch - those missing spark plug parts had to go somewhere - bounced around the cylinder. got jammed into the valve/seat, then possibly made it thru the turbo (without damaging it hopefully) and will be embedded into the catalytic converter.

Now you still have a misfire code on that cylinder. What's the compression?

 
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