[stewbets]

Originally Posted by N54weezy

Have you tried the paper towel injector out trick to confirm if any of them leaking ?

Replace injector seals at the same time.

This is the definitive way to check your injectors. I used this method, except I wrapped each injector in its own plastic bag, and was able to find the faulty ones out of the lot of 20+ injectors I had. The smell test is a good, crude test to catch the really bad ones, but this test is a little more thorough.