I also had problems getting mine to pass… additives didn’t work either… tried 34 different ways to get it to pass…changed converter, did a tuneup and it passed, also got rid of some noise at the same time… spend some money and you’ll be happy with the results…
i believe they its called a Conditional pass? they will just pass you if the drivetrain requires more than a certian amount of money, to repair it. its on the Drive clean site i remember seeing it, it will still be there. search and post that shit up.