Hi, i have a 99 Volvo S80 T6. When it idles the RPM go up and down. After checking it on the computer it says that 3 out of 4 oxygen sensors have to be replaced. Local part stores are asking $320 each for one kind and $180 each for other kind (ones are before catalytic others are after, don't know which is which). Any way its over $1000 for all.
After searching the web i found some cheep ones ~$30 sensors that suppose to work with my car, but they have only a little pieces of wire sticking out of them.
Now i don't mind to do a little work to put together wires from old sensors with the new ones if it will save me $800, but i would like to know if they will work.
Please let me know if anybody had any experience with this. Can i solder on it? Will it damage the sensor if i do? What kind of sensors do i need, because i've seen everything from 2 to 5 wires(just a direction i'll check my old ones). I'm not looking for performance or for them to work for a long time. Car is kind of on a last breath but has to serve me until at list next summer. Maybe recommendations for a website where i can by them.

Would appreciate any advice.

 

GO order them via Amazon. They run about $105 each with the connector on the ends. It will make the job easier for yourself especially being on your back.

 

Thanks for the advice, but this is still $500 against $200, trying to find the cheapest solution.

 

Got 2 oxygen sensors from amazon, $50 each with connectors. Don't know which ones are they. Will see what happens.

 

These are good questions you posted and as I am in the need of an oxygen sensor myself I am curious how it worked out for you?