Oxygen sensor

[User54]

Hi all,

Does anyone happen to know the part number for the oxygen sensor for a 1993 SE? The lambda light has recently come on and doesn't seem to want to go away. Would prefer to get a genuine Bosch if anyone has any suggestions of where to get one from.

Thanks in advance,

[Bugjam1999]

Hi,

The lambda light illuminating means that there are fault codes to be read, which might not necessarily be a fault with the oxygen/lambda sensor.

Here’s the guide on how to read the codes:

https://www.volvoclub.org.uk/faq/EngineOBDCodes.html

And here’s pretty good video showing how to read them:

https://youtu.be/odE9LoTQqwg

See which fault codes you have as a first step, then go from there.

Cheers

[User54]

Hi,

Thank you for the info, the code stored is 2-1-2 which does seem to indicate the sensor(?)

Thanks to arms like Mr Tickle I can reach the sensor without jacking the car up and the metal outer part of the sensor seems to be flapping around. I can move it around like a joystick if that makes sense, the wires themselves seem undamaged and part of the sensor seems to be still in the boss.

Thanks,

[classicswede]

I keep genuine bosch sensors with the correct plugs on them https://www.classicswede.co.uk/Lambd..._14206088.aspx

the universal sensors tend to not work very well

[Laird Scooby]

Originally Posted by User54

Hi,

Thank you for the info, the code stored is 2-1-2 which does seem to indicate the sensor(?)

Thanks to arms like Mr Tickle I can reach the sensor without jacking the car up and the metal outer part of the sensor seems to be flapping around. I can move it around like a joystick if that makes sense, the wires themselves seem undamaged and part of the sensor seems to be still in the boss.

Thanks,

Sounds like it's either taken a knock from some road debris or has fallen apart with age!

You will have fun getting the remains out of the boss in the exhaust, if you can break/cut the loose part off, you should be able to do it with a normal 22mm socket and a 2' breaker bar though.

Before fitting the new one, pull fuse #1 and after fitting it, before starting it, refit fuse #1. This clears the fault codes and old fuel trims the ECU will have learned from the failing Lambda sensor.

[User54]

Originally Posted by Laird Scooby

Sounds like it's either taken a knock from some road debris or has fallen apart with age!

You will have fun getting the remains out of the boss in the exhaust, if you can break/cut the loose part off, you should be able to do it with a normal 22mm socket and a 2' breaker bar though.

Before fitting the new one, pull fuse #1 and after fitting it, before starting it, refit fuse #1. This clears the fault codes and old fuel trims the ECU will have learned from the failing Lambda sensor.

Thanks for the info on the fuse to clear the code. I think it could well be 'fun' getting the old one out!

[Stephen Edwin]

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For a Bosch sensor with the plugs consider https://www.ebay.co.uk/itm/163058043255

Check the part number of course ...

Stephen

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[Stephen Edwin]

Originally Posted by User54

.... it could well be 'fun' getting the old one out!

If there is a blanking plug for a sensor on your exhaust down pipe just forward of the cat, that can be a better place for the sensor. Otherwise .... If scrotes steal the cat, you lose also the sensor. But that plug can be fun, mine is still not removed yet.

Stephen

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[User54]

Originally Posted by Stephen Edwin

.

For a Bosch sensor with the plugs consider https://www.ebay.co.uk/itm/163058043255

Check the part number of course ...

Stephen

.

Thank you for the link, their listing definitely seems to suggest it would be suitable for my car. There seems to be two different part numbers, 0258003034 and 0258003957 I'm not sure if these are the same or if one has superseded the other.

[Laird Scooby]

Originally Posted by User54

Thank you for the link, their listing definitely seems to suggest it would be suitable for my car. There seems to be two different part numbers, 0258003034 and 0258003957 I'm not sure if these are the same or if one has superseded the other.

Depends on what year, Model Year and engine code your car has? THere are two different sensors available but they're not interchangeable. The description "1993 SE" could apply to a multitude of different models especially if it was a late registration and the car itself may be a 1992 for the same reason.

http://www.myvolvolibrary.info/Tech_...DataPocket.pdf

Have a read through that, work out what MY (Model Year) your car is from the VIN number (it explains how to decode the VIN but make sure you're not reading the USA/Canada page!), find the engine code eg B230FB, usually on the timing belt upper cover and then have a look further through to find the correct OE Bosch number. Use that Bosch number to either order one from the suggestions above or as the search term on ebay to find an alternative. As has been noted, the Bosch LH injection system isn't particularly tolerant of universal type sensors - however most universal sensors are within the spec required for the Bosch stuff so i think Bosch are doing something deliberate to maintain their aftermarket sales.