Trying to repair the O2 sensor in my 06 Cobalt LT...when getting the part they are asking if my car was manufactured before a certain time in 06? Apparently there's some difference in 06 when it comes to O2 sensors? Can anyone clarify for me PLease!

Hello nglimm.

This is a fairly common thing to happen for us in the repair field.
Look at the sticker on the left front door. It will usually have the month/year on the sticker.
If you are unable to see it, call a GM dealer parts department with your vehicle identification number (VIN) and ask them if they would kindly run the number to tell you the build date.

If you have further questions regarding this, please ask me here in comments, be glad to help.

Thank you for using FixYa.

KL

They should have asked you for the vehicle VIN number. This would have the date of manufacture. There are only two choices, and physically looking at the O2 that needs to be replaced will solve this issue of what one or style is needed.

Question related.

How many oxygen sensors does the colt have. I was told it has 2. Can u please let me know?