I should have never, ever posted this question, Sameday I did, I started feeling my car a little weird ( jerking ), and that evening the check engine ligth went off, I checked the error codes with the scanner and it shows the same bank 1 and 2 errors it had showed 2 months ago before I changed the Mass air sensor. I thought I was going to be the first one to Indeed use this cleaner, when all of the sudden I remembered that my original sensor was still in warranty, so I ordered it again, I'll let You know about the outcome...But, Has anybody tried the cleaner yet?....