Good morning. I recently purchased a 03 s60 2.4 non-turbo. After learning I had a faulty o2 sensor I attempted to clean. I Ieft it soaking overnight in sea foam. I dried off with clean cloth this morning and reinstalled it. Now my car won't stay on after a couple minutes of idling.

 

are you getting any CEL codes? check your connectors but my sense is you will need a new O2 sensor anyways as mostly they fail due to the heater element not from being dirty on the outside.