I have a 92 firebird with an lo3. I have been searching for my running rich issue for a while and i finally watched the injector flow they both aren't spraying a uniform cone spray. the passenger side is worse than the driver side, but how do i tell if the injectors themselves are bad or if i just need new o-rings?
Thanks

 

Key-off, engine-off, jumper fuel pump on (pigtail near relay), and observe the injectors. Any fuel leakage and it needs o-rings. It is rare for TBI injectors to go bad or get clogged, but it can happen.

RBob.

 

Thanks for the help RBob, I don't think the injectors are clogged because they are both spraying consistently just dripping a little within the cone spray. I haven't got a chance to test them the way you stated, but I should get a chance this weekend