JCleary said:Injectors are not able to be detected by the dealer, unless you have an injector problem and they need to swap a couple. If it were me, I'd find an extra set on Ebay and get those done. That way you still have your stockers if you need 'em.
I did the ebay route for injectors, I had bad luck as they where not good. As for testing them before installing ,that would have been an a good decision after the fact!
But all that being said, I would look at upgrading my own tips. I would go to a shop you trust, get them to pull your injectors and get them done, then reinstall.
Good luck on what ever route you take.